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| Common Stock Value | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | NA | 0.12 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 0.12 | 0.12 | 0.12 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| dei: Entity Common Stock Shares Outstanding | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Weighted Average Number Of Diluted Shares Outstanding | NA | 37.61 | 37.69 | 37.79 | NA | 37.57 | 37.59 | 37.65 | NA | 37.57 | 37.61 | 37.82 | NA | 38.08 | 38.10 | 38.16 | NA | 38.16 | 38.15 | 38.08 | NA | 37.99 | 37.91 | 37.83 | NA | 37.83 | 37.86 | 37.89 | NA | 38.02 | 38.08 | 38.11 | NA | 37.79 | 37.75 | 37.67 | NA | 37.64 | 37.64 | 37.63 | NA | 37.80 | 37.94 | 38.10 | NA | 37.97 | 37.82 | 37.67 | NA | 0.04 | 0.04 | 38.70 | NA | 39.83 | 39.49 | 39.30 | NA | 38.74 | 39.51 | |
| Weighted Average Number Of Shares Outstanding Basic | NA | 37.53 | 37.66 | 37.74 | NA | 37.49 | 37.48 | 37.48 | NA | 37.48 | 37.53 | 37.38 | NA | 37.53 | 37.51 | 37.47 | NA | 37.39 | 37.34 | 37.30 | NA | 37.07 | 37.05 | 37.04 | NA | 36.95 | 36.95 | 36.95 | NA | 36.87 | 36.85 | 36.85 | NA | 36.89 | 36.88 | 36.77 | NA | 36.68 | 36.70 | 36.71 | NA | 36.86 | 37.02 | 37.12 | NA | 36.92 | 36.87 | 36.77 | NA | 0.04 | 0.04 | 36.93 | NA | 37.13 | 36.76 | 36.51 | NA | 32.95 | 33.73 | |
| Earnings Per Share Basic | 1.74 | 1.90 | 1.72 | 1.92 | 1.84 | 1.47 | 1.60 | 1.96 | 1.58 | 1.58 | 1.78 | 1.73 | 1.39 | 1.54 | 1.79 | 2.15 | 1.95 | 1.81 | 2.25 | 2.01 | 1.36 | 1.46 | 1.30 | 1.42 | 1.24 | 1.04 | 1.10 | 1.30 | 0.91 | 0.93 | 1.03 | 1.15 | 0.90 | 0.84 | 0.90 | 0.79 | 0.67 | 0.62 | 0.66 | 0.67 | 0.59 | 0.47 | 0.49 | 0.47 | 0.63 | 0.49 | 0.52 | 0.42 | 0.57 | 0.37 | 0.35 | 0.37 | 0.31 | 0.36 | 0.32 | 0.30 | 0.25 | 0.24 | 0.19 | |
| Earnings Per Share Diluted | 1.73 | 1.90 | 1.72 | 1.92 | 1.84 | 1.46 | 1.59 | 1.96 | 1.58 | 1.58 | 1.78 | 1.71 | 1.37 | 1.52 | 1.77 | 2.11 | 1.91 | 1.78 | 2.20 | 1.96 | 1.32 | 1.42 | 1.27 | 1.39 | 1.21 | 1.02 | 1.07 | 1.27 | 0.88 | 0.90 | 1.00 | 1.11 | 0.88 | 0.82 | 0.88 | 0.77 | 0.65 | 0.60 | 0.64 | 0.65 | 0.57 | 0.46 | 0.48 | 0.46 | 0.61 | 0.48 | 0.51 | 0.41 | 0.54 | 0.36 | 0.34 | 0.35 | 0.29 | 0.34 | 0.30 | 0.27 | 0.23 | 0.22 | 0.18 |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue From Contract With Customer Excluding Assessed Tax | 202.40 | 206.72 | 197.66 | 210.32 | 197.25 | 172.28 | 179.85 | 203.17 | 177.90 | 172.11 | 182.23 | 186.06 | 165.06 | 162.09 | 176.33 | 195.46 | 171.35 | 164.01 | 184.79 | 168.98 | 129.77 | 131.60 | 125.49 | 124.49 | 112.44 | 101.44 | 106.96 | 114.71 | 98.56 | 95.58 | 96.31 | 103.89 | 92.25 | 90.27 | 96.64 | 88.57 | 76.64 | 74.19 | 75.49 | 76.77 | 70.17 | 64.25 | 64.96 | 63.40 | 60.44 | 61.13 | 65.56 | 55.56 | 50.39 | 48.26 | 48.83 | 50.73 | 45.13 | 46.56 | 45.79 | 43.61 | 38.60 | 37.41 | 35.33 | |
| Revenues | 202.40 | 206.72 | 197.66 | 210.32 | 197.25 | 172.28 | 179.85 | 203.17 | 177.90 | 172.11 | 182.23 | 186.06 | 165.06 | 162.09 | 176.33 | 195.46 | 171.35 | 164.01 | 184.79 | 168.98 | 129.77 | 131.60 | 125.49 | 124.49 | 112.44 | 101.44 | 106.96 | 114.71 | 99.56 | 96.70 | 97.31 | 103.89 | 94.44 | 90.27 | 96.64 | 88.57 | 76.64 | 74.19 | 75.49 | 76.77 | 70.17 | 64.25 | 64.96 | 63.40 | 60.44 | 61.13 | 65.56 | 55.56 | 50.39 | 48.26 | 48.83 | 50.73 | 45.13 | 46.56 | 45.79 | 43.61 | 38.60 | 37.41 | 35.33 | |
| Realized Investment Gains Losses | 0.02 | 0.03 | -0.41 | 0.04 | 0.01 | -0.08 | -0.06 | -0.02 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating Expenses | 122.43 | 119.66 | 116.32 | 117.82 | 120.22 | 105.38 | 104.12 | 107.81 | 100.23 | 95.80 | 97.44 | 97.95 | 92.48 | 88.09 | 89.16 | 91.99 | 79.65 | 76.20 | 80.66 | 77.89 | 68.92 | 65.63 | 64.61 | 61.30 | 58.48 | 55.03 | 54.93 | 54.54 | 50.19 | 49.48 | 47.74 | 48.28 | 44.11 | 43.92 | 46.09 | 44.20 | 39.66 | 38.84 | 38.43 | 38.27 | 36.68 | 35.98 | 35.89 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| General And Administrative Expense | 7.24 | 5.84 | 4.89 | 4.74 | 7.34 | 5.15 | 4.78 | 5.76 | 6.72 | 4.58 | 4.44 | 3.46 | 4.61 | 3.38 | 3.28 | 3.23 | 2.84 | 3.47 | 3.25 | 3.13 | 5.01 | 3.76 | 3.80 | 3.12 | 3.43 | 2.74 | 2.71 | 2.48 | 3.60 | 3.36 | 2.90 | 2.71 | 3.85 | 3.73 | 4.16 | 3.89 | 3.52 | 3.54 | 3.26 | 2.68 | 2.54 | 2.58 | 2.34 | 2.20 | 2.49 | 1.93 | 2.07 | 2.61 | 2.40 | 2.07 | 2.02 | 2.11 | 3.39 | 1.74 | 1.81 | 1.00 | 2.15 | 1.83 | 1.85 | |
| Marketing And Advertising Expense | 3.97 | 2.90 | 3.01 | 1.83 | 2.65 | 2.10 | 3.31 | 3.00 | 3.44 | 1.80 | 2.95 | 1.79 | 2.91 | 1.82 | 3.13 | 1.20 | 2.31 | 1.15 | 1.81 | 2.67 | 3.09 | 2.51 | 3.67 | 2.30 | 3.53 | 2.98 | 3.54 | 2.06 | 3.00 | 2.09 | 2.78 | 1.89 | 3.19 | 2.14 | 1.82 | 1.78 | 1.89 | 1.30 | 1.76 | 1.19 | 1.43 | 1.33 | 1.80 | 1.21 | 1.13 | 1.20 | 1.43 | 0.98 | 1.22 | 1.07 | 1.73 | 1.45 | 1.38 | 1.28 | 1.25 | 0.97 | 1.01 | 0.68 | 0.76 | |
| Operating Income Loss | 79.98 | 87.06 | 81.34 | 92.50 | 77.03 | 66.91 | 75.73 | 95.36 | 77.67 | 76.31 | 84.79 | 88.10 | 72.58 | 74.00 | 87.18 | 103.47 | 91.70 | 87.81 | 104.14 | 91.09 | 60.85 | 65.97 | 60.88 | 63.19 | 53.97 | 46.41 | 52.03 | 60.17 | 48.84 | 46.63 | 48.98 | 55.16 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Interest Paid Net | 0.32 | 0.54 | 0.43 | 0.43 | 1.47 | 0.15 | 0.05 | 0.19 | -0.01 | 0.23 | 0.29 | 0.13 | 0.15 | 0.31 | 0.17 | 0.19 | 0.10 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Allocated Share Based Compensation Expense | NA | 8.29 | 8.33 | 7.30 | NA | 7.48 | 6.89 | 7.49 | NA | 7.35 | 6.50 | 8.10 | NA | 6.75 | 6.13 | 7.42 | NA | 6.45 | 5.79 | 6.68 | NA | 7.94 | 5.93 | 5.20 | NA | 3.95 | 3.65 | 3.95 | NA | 3.52 | 3.52 | 3.94 | NA | 3.70 | 3.44 | 3.49 | NA | 3.25 | 3.05 | 3.04 | NA | 2.53 | 2.33 | 2.32 | NA | 2.24 | 2.18 | 2.00 | 2.20 | 2.16 | 2.07 | 1.96 | 1.86 | 1.90 | 0.81 | 2.29 | NA | NA | NA | |
| Income Tax Expense Benefit | 19.46 | 21.41 | 21.40 | 24.10 | 14.19 | 16.80 | 19.09 | 24.57 | 20.20 | 19.56 | 22.66 | 25.65 | 19.39 | 16.54 | 18.77 | 21.34 | 17.36 | 20.19 | 20.55 | 16.89 | 11.68 | 13.34 | 14.80 | 12.70 | 10.23 | 9.20 | 12.72 | 13.07 | 15.90 | 13.09 | 11.55 | 13.14 | 17.16 | 15.44 | 17.43 | 15.41 | 12.49 | 12.64 | 12.82 | 13.91 | 11.85 | 10.76 | 10.88 | 10.23 | 9.33 | 8.13 | 12.17 | 8.99 | 1.06 | 7.73 | 8.57 | 9.26 | 7.32 | 8.85 | 7.97 | 6.89 | 5.50 | 4.91 | 4.69 | |
| Income Taxes Paid Net | 20.89 | 28.84 | 10.02 | 37.19 | 11.67 | 19.34 | 52.14 | 11.66 | 19.59 | 21.09 | 39.50 | 8.49 | 21.33 | 11.87 | 30.55 | 6.25 | 6.56 | 14.42 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 7.67 | 10.72 | 14.35 | 0.88 | 12.87 | 5.28 | 11.78 | 0.83 | 4.50 | 3.67 | 5.95 | 0.99 | 0.60 | 3.59 | 5.68 | 0.30 | 0.59 | 0.57 | NA | |
| Net Income Loss | 65.14 | 71.49 | 64.94 | 72.61 | 69.63 | 54.94 | 59.86 | 73.63 | 59.23 | 59.31 | 66.92 | 64.77 | 52.19 | 57.96 | 67.29 | 80.46 | 72.93 | 67.78 | 83.85 | 74.82 | 50.27 | 54.00 | 48.10 | 52.52 | 45.83 | 38.59 | 40.49 | 47.94 | 33.47 | 34.13 | 38.02 | 42.46 | 33.16 | 30.92 | 33.13 | 28.96 | 24.49 | 22.71 | 24.24 | 24.59 | 21.64 | 17.50 | 18.19 | 17.48 | 23.13 | 18.21 | 19.34 | 15.33 | 20.46 | 13.48 | 12.63 | 13.49 | 11.54 | 13.44 | 11.94 | 10.78 | 8.95 | 8.61 | 7.17 | |
| Comprehensive Income Net Of Tax | 40.58 | 90.57 | 64.36 | 68.33 | 82.86 | 45.24 | 63.94 | 79.34 | 81.62 | 39.06 | 45.46 | 59.72 | 49.45 | 52.81 | 68.43 | 78.53 | 78.88 | 71.33 | 84.32 | 70.47 | 52.81 | 52.66 | 47.46 | 54.10 | 45.47 | 38.08 | 39.26 | 47.87 | 33.40 | 35.26 | 39.31 | 42.12 | 31.08 | 29.82 | 31.36 | 26.91 | 24.23 | 22.60 | 23.90 | 24.61 | 21.68 | 17.35 | 18.05 | 17.27 | 22.98 | 17.85 | 19.26 | 14.94 | 20.19 | 13.08 | 12.43 | 13.16 | 11.35 | 13.45 | 12.24 | 10.43 | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Assets | 1789.22 | 1833.05 | 1886.71 | 1926.96 | 2015.07 | 1737.51 | 1619.19 | 1628.46 | 1607.78 | 1559.75 | 1567.71 | 1707.48 | 1530.45 | 1611.92 | 1537.92 | 1545.87 | 1331.43 | 1245.50 | 1039.22 | 975.60 | 954.93 | 855.03 | 812.01 | 774.81 | 695.54 | 646.13 | 617.60 | 589.27 | 581.23 | 562.35 | 547.04 | 530.71 | 528.04 | 502.15 | 477.12 | 451.84 | 439.04 | 416.32 | 398.95 | 378.69 | 379.88 | 362.91 | 356.72 | 346.37 | 351.58 | 332.69 | 305.38 | 282.88 | 279.84 | 304.93 | 289.73 | 274.51 | 349.46 | 339.20 | 321.27 | NA | 299.52 | NA | NA | |
| Liabilities | 400.56 | 446.80 | 557.49 | 608.73 | 722.10 | 546.53 | 454.10 | 506.93 | 526.68 | 541.01 | 566.91 | 683.94 | 489.14 | 556.62 | 516.06 | 557.64 | 376.37 | 347.96 | 185.73 | 177.72 | 184.84 | 160.40 | 150.10 | 143.66 | 87.66 | 67.51 | 60.22 | 52.11 | 66.46 | 51.44 | 45.81 | 48.36 | 60.03 | 50.45 | 40.96 | 41.43 | 48.33 | 42.85 | 39.09 | 34.02 | 45.68 | 36.61 | 33.74 | 28.11 | 41.22 | 46.07 | 34.81 | 30.38 | 37.12 | 32.99 | 27.99 | 25.59 | 37.02 | 33.37 | 28.41 | NA | 34.73 | NA | NA | |
| Liabilities And Stockholders Equity | 1789.22 | 1833.05 | 1886.71 | 1926.96 | 2015.07 | 1737.51 | 1619.19 | 1628.46 | 1607.78 | 1559.75 | 1567.71 | 1707.48 | 1530.45 | 1611.92 | 1537.92 | 1545.87 | 1331.43 | 1245.50 | 1039.22 | 975.60 | 954.93 | 855.03 | 812.01 | 774.81 | 695.54 | 646.13 | 617.60 | 589.27 | 581.23 | 562.35 | 547.04 | 530.71 | 528.04 | 502.15 | 477.12 | 451.84 | 439.04 | 416.32 | 398.95 | 378.69 | 379.88 | 362.91 | 356.72 | 346.37 | 351.58 | 332.69 | 305.38 | 282.88 | 279.84 | 304.93 | 289.73 | 274.51 | 349.46 | 339.20 | 321.27 | NA | 299.52 | NA | NA | |
| Stockholders Equity | 1388.66 | 1386.25 | 1329.22 | 1318.23 | 1292.96 | 1190.98 | 1165.09 | 1121.53 | 1081.09 | 1018.74 | 1000.80 | 1023.54 | 1041.31 | 1055.30 | 1021.86 | 988.23 | 955.06 | 897.54 | 853.48 | 797.88 | 770.09 | 694.62 | 661.91 | 631.15 | 607.88 | 578.62 | 557.38 | 537.16 | 514.77 | 510.91 | 501.23 | 482.36 | 468.01 | 451.70 | 436.15 | 410.42 | 390.71 | 373.47 | 359.86 | 344.67 | 334.21 | 326.30 | 322.98 | 318.26 | 310.36 | 286.62 | 270.56 | 252.50 | 242.72 | 271.93 | 261.74 | 248.92 | 312.44 | 305.83 | 292.86 | NA | 234.48 | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
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| Cash And Cash Equivalents At Carrying Value | 544.48 | 446.35 | 434.06 | 376.68 | 451.28 | 420.50 | 396.49 | 332.78 | 430.75 | 318.70 | 290.54 | 364.57 | 506.74 | 432.71 | 413.61 | 390.92 | 460.86 | 310.37 | 404.15 | 363.81 | 270.12 | 320.53 | 286.18 | 260.95 | 246.32 | 210.09 | 170.69 | 156.17 | 167.01 | 138.99 | 128.14 | 137.66 | 168.24 | 161.44 | 153.28 | 138.00 | 199.73 | 160.38 | 169.26 | 161.05 | 168.92 | 155.10 | 133.15 | 130.04 | 132.69 | 119.01 | 135.47 | 125.92 | 128.91 | 150.10 | 129.59 | 119.81 | 169.62 | 157.62 | 135.77 | 116.57 | 124.99 | 108.75 | 113.53 | |
| Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents | 700.46 | 600.00 | 574.13 | 535.16 | 611.67 | 588.90 | 557.33 | 502.64 | 572.66 | 468.83 | 428.89 | 500.19 | 625.57 | 563.80 | 545.24 | 552.68 | 608.05 | 437.30 | NA | NA | 274.25 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
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| Property Plant And Equipment Gross | 403.60 | NA | NA | NA | 350.09 | NA | NA | NA | 302.53 | NA | NA | NA | 276.99 | NA | NA | NA | 248.76 | NA | NA | NA | 206.98 | NA | NA | NA | 183.64 | NA | NA | NA | 140.01 | NA | NA | NA | 106.28 | NA | NA | NA | 100.88 | NA | NA | NA | 88.67 | NA | NA | NA | 76.82 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Accumulated Depreciation Depletion And Amortization Property Plant And Equipment | 296.30 | NA | NA | NA | 247.42 | NA | NA | NA | 202.27 | NA | NA | NA | 180.93 | NA | NA | NA | 163.56 | NA | NA | NA | 135.19 | NA | NA | NA | 120.63 | NA | NA | NA | 101.46 | NA | NA | NA | 75.18 | NA | NA | NA | 69.98 | NA | NA | NA | 56.49 | NA | NA | NA | 44.12 | NA | NA | NA | 37.09 | NA | NA | NA | 30.47 | NA | NA | NA | 31.26 | NA | NA | |
| Amortization Of Intangible Assets | 4.80 | 5.00 | 5.00 | 5.00 | 5.50 | 4.50 | 4.50 | 4.10 | 4.30 | 3.90 | 4.00 | 4.00 | 3.60 | 3.70 | 3.40 | 2.70 | 1.90 | 0.70 | 0.60 | 0.70 | 0.50 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.40 | 0.60 | 0.60 | 0.50 | 0.60 | 0.60 | 0.60 | 0.50 | 0.60 | 0.70 | 0.30 | 0.80 | 0.40 | 0.30 | 0.40 | 0.30 | 0.40 | 0.40 | NA | NA | NA | NA | NA | NA | |
| Property Plant And Equipment Net | 107.30 | 109.48 | 108.80 | 107.24 | 102.67 | 101.65 | 99.02 | 99.13 | 100.26 | 93.51 | 93.25 | 95.30 | 96.06 | 95.58 | 93.11 | 88.66 | 85.20 | 82.07 | 78.46 | 74.93 | 71.80 | 66.53 | 64.21 | 61.05 | 63.01 | 54.32 | 50.09 | 39.62 | 38.55 | 35.32 | 34.64 | 33.89 | 31.10 | 30.77 | 31.50 | 32.09 | 30.90 | 31.03 | 31.29 | 31.19 | 32.19 | 32.80 | 34.40 | 33.39 | 32.70 | 27.62 | 26.44 | 18.74 | 18.01 | 18.47 | 14.96 | 14.88 | 14.46 | 14.08 | 13.41 | NA | 12.54 | NA | NA | |
| Goodwill | 236.71 | 236.71 | 236.71 | 236.71 | 236.71 | 154.79 | 154.79 | 154.79 | 154.79 | 154.79 | 154.79 | 154.79 | 154.79 | 154.79 | 154.79 | 147.39 | 147.39 | 147.39 | 147.39 | 147.39 | 146.86 | NA | NA | NA | 59.71 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 31.80 | 31.80 | 31.80 | 31.80 | 31.80 | NA | NA | NA | 31.80 | NA | NA | |
| Intangible Assets Net Excluding Goodwill | 98.08 | 104.33 | 108.42 | 113.58 | 119.11 | 84.69 | 89.81 | 94.41 | 98.06 | 99.89 | 105.61 | 111.62 | 116.38 | 119.80 | 119.99 | 90.94 | 95.35 | 58.87 | 59.55 | 60.28 | 60.99 | NA | NA | NA | 2.96 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Finite Lived Intangible Assets Net | 98.08 | 104.33 | 108.42 | 113.58 | 119.11 | 84.69 | 89.81 | 94.41 | 98.06 | 99.89 | 105.61 | 111.62 | 116.38 | 119.80 | 119.99 | 90.94 | 95.35 | 58.87 | 59.55 | 60.28 | 60.99 | 2.67 | 2.77 | 2.87 | 2.96 | 3.06 | 3.15 | 3.25 | 3.35 | 3.44 | 3.54 | 3.63 | 3.73 | 3.83 | 3.92 | 4.02 | 4.43 | 5.00 | 5.57 | 6.14 | 6.71 | 7.28 | 7.85 | 8.41 | 8.98 | 9.65 | 11.31 | 12.04 | 1.35 | 1.70 | 2.05 | 2.40 | 2.76 | NA | NA | NA | 4.23 | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stockholders Equity | 1388.66 | 1386.25 | 1329.22 | 1318.23 | 1292.96 | 1190.98 | 1165.09 | 1121.53 | 1081.09 | 1018.74 | 1000.80 | 1023.54 | 1041.31 | 1055.30 | 1021.86 | 988.23 | 955.06 | 897.54 | 853.48 | 797.88 | 770.09 | 694.62 | 661.91 | 631.15 | 607.88 | 578.62 | 557.38 | 537.16 | 514.77 | 510.91 | 501.23 | 482.36 | 468.01 | 451.70 | 436.15 | 410.42 | 390.71 | 373.47 | 359.86 | 344.67 | 334.21 | 326.30 | 322.98 | 318.26 | 310.36 | 286.62 | 270.56 | 252.50 | 242.72 | 271.93 | 261.74 | 248.92 | 312.44 | 305.83 | 292.86 | NA | 234.48 | NA | NA | |
| Common Stock Value | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | NA | 0.12 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 0.12 | 0.12 | 0.12 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Additional Paid In Capital Common Stock | 350.70 | 344.14 | 335.64 | 327.52 | 333.29 | 346.95 | 339.87 | 333.11 | 345.47 | 330.29 | 325.05 | 318.12 | 330.26 | 323.63 | 313.68 | 309.99 | 329.74 | 327.65 | 327.97 | 328.06 | 342.54 | 343.54 | 341.45 | 335.43 | 341.86 | 336.08 | 331.06 | 327.67 | 331.08 | 342.11 | 343.08 | 339.19 | 342.31 | 337.26 | 333.28 | 324.95 | 321.21 | 317.62 | 313.59 | 309.32 | 307.06 | 302.32 | 298.66 | 295.62 | 295.56 | 289.91 | 286.82 | 283.16 | 283.61 | 277.74 | 275.06 | 270.59 | 340.72 | 335.08 | 332.12 | NA | 340.62 | NA | NA | |
| Retained Earnings Accumulated Deficit | 1405.90 | 1368.66 | 1325.14 | 1288.25 | 1244.22 | 1208.61 | 1180.82 | 1148.09 | 1101.53 | 1068.66 | 1035.72 | 995.19 | 956.97 | 929.85 | 896.98 | 854.75 | 799.37 | 749.21 | 704.22 | 643.13 | 591.09 | 560.16 | 525.43 | 496.56 | 463.25 | 433.23 | 410.42 | 385.73 | 353.58 | 332.51 | 310.78 | 285.15 | 255.14 | 231.74 | 210.61 | 187.23 | 168.01 | 150.97 | 135.72 | 118.94 | 101.81 | 86.16 | 74.65 | 62.47 | 51.04 | 32.79 | 19.47 | 4.98 | -5.64 | 26.63 | 17.26 | 8.71 | -0.58 | -8.68 | -18.69 | NA | -34.60 | NA | NA | |
| Accumulated Other Comprehensive Income Loss Net Of Tax | -34.70 | -10.14 | -29.23 | -28.65 | -24.37 | -37.61 | -27.90 | -31.98 | -37.70 | -60.09 | -39.84 | -18.38 | -13.33 | -10.59 | -5.44 | -6.58 | -4.65 | -10.60 | -14.15 | -14.62 | -10.27 | -12.80 | -11.46 | -10.82 | -12.39 | -12.03 | -11.52 | -10.29 | -10.23 | -10.15 | -11.28 | -12.57 | -12.23 | -10.14 | -9.05 | -7.28 | -5.23 | -4.97 | -4.86 | -4.52 | -4.54 | -4.58 | -4.43 | -4.29 | -4.08 | -3.93 | -3.56 | -3.48 | -3.09 | -2.82 | -2.42 | -2.21 | -1.88 | -1.69 | -1.69 | NA | -1.65 | NA | NA | |
| Treasury Stock Value | 333.37 | 316.52 | 302.45 | 269.00 | 260.30 | 327.09 | 327.81 | 327.81 | 328.33 | 320.25 | 320.25 | 271.51 | 232.71 | 187.72 | 183.48 | 170.04 | 169.52 | 168.84 | 164.68 | 158.80 | 153.39 | 196.40 | 193.63 | 190.15 | 184.96 | 178.78 | 172.69 | 166.06 | 159.79 | 153.68 | 141.48 | 129.54 | 117.33 | 107.28 | 98.81 | 94.60 | 93.41 | 90.27 | 84.71 | 79.19 | 70.25 | 57.72 | 46.02 | 35.66 | 32.27 | 32.27 | 32.27 | 32.27 | 32.27 | 29.74 | 28.28 | 28.28 | 25.93 | 19.00 | 19.00 | NA | 70.00 | NA | NA | |
| Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value | NA | 8.29 | 8.33 | 7.30 | NA | 7.48 | 6.89 | 7.49 | NA | 7.35 | 6.50 | 8.10 | NA | 6.75 | 6.13 | 7.42 | NA | 6.45 | 5.79 | 6.68 | NA | 7.94 | 5.93 | 5.20 | 4.30 | 3.95 | 3.65 | 3.95 | 3.43 | 3.52 | 3.52 | 3.94 | 3.88 | 3.70 | 3.44 | 3.49 | 3.24 | 3.25 | 2.98 | 3.04 | 2.59 | 2.53 | 2.33 | 2.32 | 2.46 | 2.24 | 2.18 | 2.00 | 2.20 | 2.16 | 2.07 | 1.96 | 1.86 | 1.90 | NA | NA | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Operating Activities | 176.25 | 95.09 | 118.85 | -4.95 | 141.69 | 79.16 | 105.39 | 7.53 | 134.23 | 85.10 | 93.64 | -23.73 | 145.71 | 62.81 | 96.73 | -23.16 | 227.62 | -48.35 | 104.85 | 120.37 | 89.14 | 67.69 | 69.73 | 39.37 | 70.11 | 67.99 | 54.38 | 31.44 | 46.45 | 52.47 | NA | NA | 65.77 | 52.64 | 28.71 | -57.38 | 43.86 | 35.74 | 30.56 | 10.03 | NA | NA | NA | 10.15 | 23.55 | 37.08 | 19.97 | 10.28 | 28.31 | 27.38 | 12.52 | 13.37 | 18.69 | 27.38 | 18.34 | 1.07 | 22.56 | 19.03 | NA | |
| Net Cash Provided By Used In Investing Activities | -11.67 | -41.52 | -17.92 | -15.83 | -91.67 | -15.85 | -15.01 | -32.75 | -18.12 | -12.51 | -44.82 | -10.82 | -11.40 | -12.95 | -31.01 | -12.33 | -34.25 | 90.19 | -11.63 | 24.56 | -106.76 | -4.55 | -21.30 | 10.56 | -13.31 | -7.57 | -16.68 | -12.73 | 14.25 | -13.57 | NA | NA | -29.28 | -25.89 | -4.35 | 6.34 | 5.56 | -32.58 | -9.89 | -1.05 | NA | NA | NA | -0.45 | -8.55 | -48.20 | -6.83 | -5.54 | 1.23 | -1.21 | -0.88 | 15.89 | 0.21 | -2.78 | 2.65 | -8.66 | -0.02 | -0.98 | NA | |
| Net Cash Provided By Used In Financing Activities | -44.91 | -42.45 | -61.47 | -52.54 | -36.27 | -23.11 | -39.53 | -48.14 | -26.90 | -28.43 | -100.58 | -86.47 | -70.16 | -26.85 | -73.92 | -18.85 | -27.74 | -33.38 | -34.17 | -49.82 | -32.04 | -27.53 | -22.30 | -36.23 | -20.24 | -20.55 | -22.43 | -29.45 | -32.73 | -28.88 | NA | NA | -27.91 | -17.79 | -8.90 | -10.69 | -10.11 | -12.12 | -11.58 | -17.24 | NA | NA | NA | -11.92 | -1.69 | -4.00 | -3.46 | -7.93 | -50.59 | -5.12 | -1.75 | -78.72 | -6.68 | -2.44 | -1.65 | -0.44 | -5.94 | -22.77 | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Operating Activities | 176.25 | 95.09 | 118.85 | -4.95 | 141.69 | 79.16 | 105.39 | 7.53 | 134.23 | 85.10 | 93.64 | -23.73 | 145.71 | 62.81 | 96.73 | -23.16 | 227.62 | -48.35 | 104.85 | 120.37 | 89.14 | 67.69 | 69.73 | 39.37 | 70.11 | 67.99 | 54.38 | 31.44 | 46.45 | 52.47 | NA | NA | 65.77 | 52.64 | 28.71 | -57.38 | 43.86 | 35.74 | 30.56 | 10.03 | NA | NA | NA | 10.15 | 23.55 | 37.08 | 19.97 | 10.28 | 28.31 | 27.38 | 12.52 | 13.37 | 18.69 | 27.38 | 18.34 | 1.07 | 22.56 | 19.03 | NA | |
| Net Income Loss | 65.14 | 71.49 | 64.94 | 72.61 | 69.63 | 54.94 | 59.86 | 73.63 | 59.23 | 59.31 | 66.92 | 64.77 | 52.19 | 57.96 | 67.29 | 80.46 | 72.93 | 67.78 | 83.85 | 74.82 | 50.27 | 54.00 | 48.10 | 52.52 | 45.83 | 38.59 | 40.49 | 47.94 | 33.47 | 34.13 | 38.02 | 42.46 | 33.16 | 30.92 | 33.13 | 28.96 | 24.49 | 22.71 | 24.24 | 24.59 | 21.64 | 17.50 | 18.19 | 17.48 | 23.13 | 18.21 | 19.34 | 15.33 | 20.46 | 13.48 | 12.63 | 13.49 | 11.54 | 13.44 | 11.94 | 10.78 | 8.95 | 8.61 | 7.17 | |
| Increase Decrease In Accounts Receivable | -7.95 | 8.79 | -7.61 | 10.49 | -4.53 | -1.43 | -8.86 | 21.93 | -8.88 | 0.28 | 12.03 | 11.70 | -3.78 | -19.25 | -0.45 | 7.88 | -2.22 | -17.23 | 5.82 | 31.64 | -12.52 | 6.60 | -4.57 | 13.45 | -4.44 | 0.21 | -5.61 | 14.96 | -10.18 | 7.87 | -1.44 | 6.11 | -6.01 | -6.24 | 10.33 | 12.35 | -8.85 | 2.40 | 0.91 | 12.29 | -3.15 | -4.44 | 1.84 | 4.92 | -3.06 | -2.66 | 6.29 | 1.14 | -2.26 | 0.17 | 0.26 | -2.78 | 5.43 | -2.46 | 4.37 | 4.32 | -1.43 | 3.31 | NA | |
| Share Based Compensation | 6.62 | 7.98 | 7.98 | 7.10 | 7.33 | 7.48 | 6.89 | 7.49 | 7.91 | 7.35 | 6.50 | 8.10 | 7.00 | 6.75 | 6.13 | 7.42 | 6.69 | 6.45 | 5.79 | 6.68 | 6.22 | 7.94 | 5.93 | 5.20 | 4.30 | 3.95 | 3.65 | 3.95 | 3.43 | 3.52 | 3.52 | 3.94 | 3.88 | 3.70 | 3.44 | 3.49 | 3.24 | 3.25 | 2.98 | 3.04 | 2.59 | 2.53 | 2.33 | 2.32 | 2.46 | 2.24 | 2.18 | 2.00 | 2.20 | 2.16 | 2.07 | 1.96 | 1.86 | 1.90 | 0.81 | 2.29 | 2.34 | 2.13 | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Investing Activities | -11.67 | -41.52 | -17.92 | -15.83 | -91.67 | -15.85 | -15.01 | -32.75 | -18.12 | -12.51 | -44.82 | -10.82 | -11.40 | -12.95 | -31.01 | -12.33 | -34.25 | 90.19 | -11.63 | 24.56 | -106.76 | -4.55 | -21.30 | 10.56 | -13.31 | -7.57 | -16.68 | -12.73 | 14.25 | -13.57 | NA | NA | -29.28 | -25.89 | -4.35 | 6.34 | 5.56 | -32.58 | -9.89 | -1.05 | NA | NA | NA | -0.45 | -8.55 | -48.20 | -6.83 | -5.54 | 1.23 | -1.21 | -0.88 | 15.89 | 0.21 | -2.78 | 2.65 | -8.66 | -0.02 | -0.98 | NA | |
| Payments To Acquire Property Plant And Equipment | 0.21 | 0.83 | 7.70 | 1.20 | 2.07 | 5.98 | 1.05 | 0.22 | 6.50 | 3.96 | 1.28 | 1.40 | 2.93 | 4.76 | 5.55 | 4.26 | 1.99 | 3.76 | 4.97 | 4.29 | 3.61 | 2.57 | 5.46 | 0.65 | 12.07 | 7.79 | 13.76 | 2.28 | 4.84 | 1.47 | 1.63 | 4.15 | 1.63 | 0.85 | 1.25 | 2.65 | 1.06 | 1.39 | 1.53 | 0.82 | 0.62 | 0.25 | 2.13 | 1.62 | 5.98 | 1.94 | 6.62 | 0.79 | 0.20 | 3.91 | 0.44 | 0.61 | 0.64 | 1.00 | 1.02 | 0.50 | 0.52 | 0.86 | NA | |
| Payments To Acquire Investments | 4.00 | 81.50 | 2.90 | 5.00 | 0.90 | 26.10 | 28.70 | 22.90 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Cash Provided By Used In Financing Activities | -44.91 | -42.45 | -61.47 | -52.54 | -36.27 | -23.11 | -39.53 | -48.14 | -26.90 | -28.43 | -100.58 | -86.47 | -70.16 | -26.85 | -73.92 | -18.85 | -27.74 | -33.38 | -34.17 | -49.82 | -32.04 | -27.53 | -22.30 | -36.23 | -20.24 | -20.55 | -22.43 | -29.45 | -32.73 | -28.88 | NA | NA | -27.91 | -17.79 | -8.90 | -10.69 | -10.11 | -12.12 | -11.58 | -17.24 | NA | NA | NA | -11.92 | -1.69 | -4.00 | -3.46 | -7.93 | -50.59 | -5.12 | -1.75 | -78.72 | -6.68 | -2.44 | -1.65 | -0.44 | -5.94 | -22.77 | NA | |
| Payments For Repurchase Of Common Stock | 16.84 | 15.03 | 33.45 | 10.15 | NA | NA | NA | NA | 0.00 | 0.00 | 48.74 | 38.80 | 45.00 | 4.24 | 13.44 | 0.52 | 0.68 | 4.17 | 5.87 | 5.42 | 5.82 | 2.77 | 3.49 | 5.18 | 6.19 | 6.08 | 6.64 | 6.27 | 6.11 | 12.21 | 11.94 | 12.21 | 10.05 | 8.47 | 4.20 | 1.20 | 3.13 | 5.56 | 5.53 | 8.94 | 12.53 | 11.69 | 10.36 | 3.39 | NA | NA | NA | NA | 2.53 | 1.46 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 | 2023-12-31 | 2023-09-30 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenues | 202.40 | 206.72 | 197.66 | 210.32 | 197.25 | 172.28 | 179.85 | 203.17 | 177.90 | 172.11 | 182.23 | 186.06 | 165.06 | 162.09 | 176.33 | 195.46 | 171.35 | 164.01 | 184.79 | 168.98 | 129.77 | 131.60 | 125.49 | 124.49 | 112.44 | 101.44 | 106.96 | 114.71 | 99.56 | 96.70 | 97.31 | 103.89 | 94.44 | 90.27 | 96.64 | 88.57 | 76.64 | 74.19 | 75.49 | 76.77 | 70.17 | 64.25 | 64.96 | 63.40 | 60.44 | 61.13 | 65.56 | 55.56 | 50.39 | 48.26 | 48.83 | 50.73 | 45.13 | 46.56 | 45.79 | 43.61 | 38.60 | 37.41 | 35.33 | |
| Revenue From Contract With Customer Excluding Assessed Tax | 202.40 | 206.72 | 197.66 | 210.32 | 197.25 | 172.28 | 179.85 | 203.17 | 177.90 | 172.11 | 182.23 | 186.06 | 165.06 | 162.09 | 176.33 | 195.46 | 171.35 | 164.01 | 184.79 | 168.98 | 129.77 | 131.60 | 125.49 | 124.49 | 112.44 | 101.44 | 106.96 | 114.71 | 98.56 | 95.58 | 96.31 | 103.89 | 92.25 | 90.27 | 96.64 | 88.57 | 76.64 | 74.19 | 75.49 | 76.77 | 70.17 | 64.25 | 64.96 | 63.40 | 60.44 | 61.13 | 65.56 | 55.56 | 50.39 | 48.26 | 48.83 | 50.73 | 45.13 | 46.56 | 45.79 | 43.61 | 38.60 | 37.41 | 35.33 | |
| Commission Revenue | 174.77 | 180.39 | 171.68 | 184.87 | 171.89 | 150.50 | 158.59 | 181.99 | 158.44 | 153.16 | 163.46 | 166.11 | 145.91 | 142.83 | 156.43 | 175.84 | 155.81 | 150.59 | 172.09 | 155.95 | 117.10 | 119.87 | 114.12 | 112.76 | 101.44 | 90.51 | 96.11 | 102.77 | 87.97 | 86.27 | 87.02 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Information Services | 13.15 | 12.96 | 12.54 | 11.88 | 11.92 | 11.80 | 11.65 | 11.01 | 10.40 | 9.71 | 9.40 | 9.81 | 9.56 | 9.61 | 9.84 | 9.16 | 8.77 | 8.50 | 8.43 | 8.64 | 8.52 | 7.69 | 7.16 | 7.37 | 7.06 | 7.17 | 6.93 | 7.07 | 6.79 | 6.33 | 6.50 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Post Trade Services | 10.97 | 10.38 | 10.40 | 10.73 | 10.95 | 9.83 | 9.41 | 9.98 | 8.82 | 9.00 | 9.14 | 9.91 | 9.37 | 9.44 | 9.85 | 10.26 | 6.56 | 4.69 | 4.05 | 4.15 | 3.92 | 3.78 | 3.96 | 4.10 | 3.67 | 3.48 | 3.62 | 4.58 | 3.47 | 2.68 | 2.49 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Technology Services | 3.51 | 2.98 | 3.04 | 2.83 | 2.49 | 0.15 | 0.19 | 0.19 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Information Services, Transferred At Point In Time | 0.36 | 0.17 | 0.44 | 0.01 | 0.30 | 0.46 | 0.17 | 0.35 | 0.18 | 0.19 | 0.17 | 0.32 | 0.17 | 0.22 | 0.33 | 0.12 | 0.20 | 0.27 | 0.61 | 0.84 | 0.37 | 0.49 | 0.11 | 0.15 | 0.23 | 0.14 | 0.10 | 0.22 | 0.15 | 0.06 | 0.21 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Information Services, Transferred Over Time | 12.80 | 12.79 | 12.10 | 11.87 | 11.62 | 11.34 | 11.49 | 10.66 | 10.22 | 9.52 | 9.22 | 9.48 | 9.39 | 9.39 | 9.51 | 9.04 | 8.57 | 8.23 | 7.82 | 7.81 | 8.15 | 7.20 | 7.05 | 7.22 | 6.82 | 7.03 | 6.83 | 6.84 | 6.64 | 6.27 | 6.29 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Post Trade Services, Transferred At Point In Time | 0.04 | 0.05 | 0.04 | 0.19 | 0.01 | 0.06 | 0.02 | 0.03 | 0.00 | 0.00 | 0.00 | 0.04 | 0.06 | 0.00 | -0.23 | 0.24 | 0.06 | 0.13 | 0.11 | 0.00 | 0.07 | 0.01 | 0.01 | 0.01 | 0.03 | 0.01 | 0.00 | 0.29 | 1.09 | 0.31 | 0.02 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Post Trade Services, Transferred Over Time | 10.94 | 10.33 | 10.36 | 10.54 | 10.94 | 9.77 | 9.40 | 9.96 | 8.82 | 9.00 | 9.14 | 9.87 | 9.31 | 9.44 | 9.85 | 10.02 | 6.50 | 4.56 | 3.95 | 4.15 | 3.86 | 3.77 | 3.95 | 4.09 | 3.64 | 3.46 | 3.62 | 4.29 | 2.37 | 2.37 | 2.47 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Technology Services, Transferred At Point In Time | 0.00 | 0.01 | 0.01 | 0.00 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Technology Services, Transferred Over Time | 3.51 | 2.97 | 3.02 | 2.83 | 2.49 | 0.15 | 0.19 | 0.19 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| NA | 165.01 | 156.54 | 166.83 | 157.18 | 136.40 | 142.00 | 161.57 | 142.00 | 140.02 | 149.36 | 150.56 | 134.25 | 131.31 | 143.24 | 160.12 | 142.74 | 138.94 | 158.84 | 142.64 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | ||
| NA | 5.82 | 5.26 | 5.76 | 4.74 | 4.49 | 4.33 | 4.86 | 3.45 | 3.97 | 5.07 | 4.76 | 4.59 | 4.80 | 4.78 | 5.80 | 3.91 | 4.51 | 3.86 | 3.92 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | ||
| NA | 35.89 | 35.86 | 37.73 | 35.33 | 31.40 | 33.52 | 36.74 | 32.45 | 28.12 | 27.80 | 30.74 | 26.22 | 25.99 | 28.32 | 29.54 | 24.69 | 20.56 | 22.09 | 22.42 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
