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Guarantor and Non-Guarantor Financial Statements, Cash Flow Statements (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Cash flows from operating activities: |  |  |  |
Net cash provided by (used in) operating activities |  |  | $ 48.3 | $ 71.3
Cash flows from investing activities: |  |  |  |
Capital expenditures | $ (11.6) | $ (14.7) | (22.9) | (30.1)
Purchase of available for sale securities |  |  | (0.5) | (23.4)
Proceeds from disposition of available for sale securities |  |  | 84.0 | 25.0
Net cash provided by (used in) investing activities |  |  | 60.6 | (28.5)
Cash flows from financing activities: |  |  |  |
Repayment of Convertible Notes2 |  |  | (175.0) | 0.0
Proceeds from cash-settled call options related to repayment of Convertible Notes2 |  |  | 94.9 | 0.0
Payment for conversion premium related to repayment of Convertible Notes2 |  |  | (94.9) | 0.0
Excess tax benefit upon vesting of non-vested shares and dividend payment on unvested shares expected to vest |  |  | 1.1 | 0.8
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares |  |  | (3.0) | (2.4)
Repurchase of common stock |  |  | (41.4) | (23.7)
Cash dividend paid to stockholders |  |  | (14.0) | (12.8)
Intercompany loan |  |  | 0.0 | 0.0
Net cash used in financing activities |  |  | (232.3) | (38.1)
Net (decrease) increase in cash and cash equivalents during the period |  |  | (123.4) | 4.7
Cash and cash equivalents at beginning of period |  |  | 177.7 | 169.5
Cash and cash equivalents at end of period | 54.3 | 174.2 | 54.3 | 174.2
Parent |  |  |  |
Cash flows from operating activities: |  |  |  |
Net cash provided by (used in) operating activities |  |  | 233.4 | 7.6
Cash flows from investing activities: |  |  |  |
Capital expenditures |  |  | 0.0 | 0.0
Purchase of available for sale securities |  |  | 0.0 | 0.0
Proceeds from disposition of available for sale securities |  |  | 0.0 | 0.0
Net cash provided by (used in) investing activities |  |  | 0.0 | 0.0
Cash flows from financing activities: |  |  |  |
Repayment of Convertible Notes2 |  |  | (175.0) |
Proceeds from cash-settled call options related to repayment of Convertible Notes2 |  |  | 94.9 |
Payment for conversion premium related to repayment of Convertible Notes2 |  |  | (94.9) |
Excess tax benefit upon vesting of non-vested shares and dividend payment on unvested shares expected to vest |  |  | 0.0 | 0.0
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares |  |  | (3.0) | (2.4)
Repurchase of common stock |  |  | (41.4) | (23.7)
Cash dividend paid to stockholders |  |  | (14.0) | (12.8)
Intercompany loan |  |  | 0.0 | 31.3
Net cash used in financing activities |  |  | (233.4) | (7.6)
Net (decrease) increase in cash and cash equivalents during the period |  |  | 0.0 | 0.0
Cash and cash equivalents at beginning of period |  |  | 0.0 | 5.0
Cash and cash equivalents at end of period | 0.0 | 5.0 | 0.0 | 5.0
Guarantor Subsidiaries |  |  |  |
Cash flows from operating activities: |  |  |  |
Net cash provided by (used in) operating activities |  |  | (190.1) | 56.9
Cash flows from investing activities: |  |  |  |
Capital expenditures |  |  | (14.3) | (29.4)
Purchase of available for sale securities |  |  | (0.5) | (23.4)
Proceeds from disposition of available for sale securities |  |  | 84.0 | 25.0
Net cash provided by (used in) investing activities |  |  | 69.2 | (27.8)
Cash flows from financing activities: |  |  |  |
Repayment of Convertible Notes2 |  |  | 0.0 |
Proceeds from cash-settled call options related to repayment of Convertible Notes2 |  |  | 0.0 |
Payment for conversion premium related to repayment of Convertible Notes2 |  |  | 0.0 |
Excess tax benefit upon vesting of non-vested shares and dividend payment on unvested shares expected to vest |  |  | 1.1 | 0.8
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares |  |  | 0.0 | 0.0
Repurchase of common stock |  |  | 0.0 | 0.0
Cash dividend paid to stockholders |  |  | 0.0 | 0.0
Intercompany loan |  |  | (5.7) | (22.9)
Net cash used in financing activities |  |  | (4.6) | (22.1)
Net (decrease) increase in cash and cash equivalents during the period |  |  | (125.5) | 7.0
Cash and cash equivalents at beginning of period |  |  | 175.3 | 157.7
Cash and cash equivalents at end of period | 49.8 | 164.7 | 49.8 | 164.7
Non-Guarantor Subsidiaries |  |  |  |
Cash flows from operating activities: |  |  |  |
Net cash provided by (used in) operating activities |  |  | 5.0 | 6.8
Cash flows from investing activities: |  |  |  |
Capital expenditures |  |  | (8.6) | (0.7)
Purchase of available for sale securities |  |  | 0.0 | 0.0
Proceeds from disposition of available for sale securities |  |  | 0.0 | 0.0
Net cash provided by (used in) investing activities |  |  | (8.6) | (0.7)
Cash flows from financing activities: |  |  |  |
Repayment of Convertible Notes2 |  |  | 0.0 |
Proceeds from cash-settled call options related to repayment of Convertible Notes2 |  |  | 0.0 |
Payment for conversion premium related to repayment of Convertible Notes2 |  |  | 0.0 |
Excess tax benefit upon vesting of non-vested shares and dividend payment on unvested shares expected to vest |  |  | 0.0 | 0.0
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares |  |  | 0.0 | 0.0
Repurchase of common stock |  |  | 0.0 | 0.0
Cash dividend paid to stockholders |  |  | 0.0 | 0.0
Intercompany loan |  |  | 5.7 | (8.4)
Net cash used in financing activities |  |  | 5.7 | (8.4)
Net (decrease) increase in cash and cash equivalents during the period |  |  | 2.1 | (2.3)
Cash and cash equivalents at beginning of period |  |  | 2.4 | 6.8
Cash and cash equivalents at end of period | 4.5 | 4.5 | 4.5 | 4.5
Consolidating Adjustments |  |  |  |
Cash flows from operating activities: |  |  |  |
Net cash provided by (used in) operating activities |  |  | 0.0 | 0.0
Cash flows from investing activities: |  |  |  |
Capital expenditures |  |  | 0.0 | 0.0
Purchase of available for sale securities |  |  | 0.0 | 0.0
Proceeds from disposition of available for sale securities |  |  | 0.0 | 0.0
Net cash provided by (used in) investing activities |  |  | 0.0 | 0.0
Cash flows from financing activities: |  |  |  |
Repayment of Convertible Notes2 |  |  | 0.0 |
Proceeds from cash-settled call options related to repayment of Convertible Notes2 |  |  | 0.0 |
Payment for conversion premium related to repayment of Convertible Notes2 |  |  | 0.0 |
Excess tax benefit upon vesting of non-vested shares and dividend payment on unvested shares expected to vest |  |  | 0.0 | 0.0
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares |  |  | 0.0 | 0.0
Repurchase of common stock |  |  | 0.0 | 0.0
Cash dividend paid to stockholders |  |  | 0.0 | 0.0
Intercompany loan |  |  | 0.0 | 0.0
Net cash used in financing activities |  |  | 0.0 | 0.0
Net (decrease) increase in cash and cash equivalents during the period |  |  | 0.0 | 0.0
Cash and cash equivalents at beginning of period |  |  | 0.0 | 0.0
Cash and cash equivalents at end of period | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0

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