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Condensed Guarantor and Non-Guarantor Financial Information, Cash Flow Statements (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Cash flows from operating activities: |  |  |  |  |
Net cash (used in) provided by operating activities |  |  |  | $ 131.5 | $ 107.4
Cash flows from investing activities |  |  |  |  |
Capital expenditures |  | $ (16.4) | $ (15.1) | (56.1) | (57.4)
Purchase of available for sale securities |  |  |  | (196.0) | (201.1)
Proceeds from disposition of available for sale securities |  |  |  | 237.2 | 30.0
Proceeds from disposal of property, plant and equipment |  |  |  | 0.6 | 0.0
Intercompany loans receivable |  |  |  | 0.0 | 0.0
Net cash used in investing activities | [1] |  |  | (14.3) | (228.5)
Cash flows from financing activities |  |  |  |  |
Repayment of principal and redemption premium of 8.25% Senior Notes |  |  |  | 0.0 | (206.0)
Issuance of 5.875% Senior Notes |  |  |  | 0.0 | 375.0
Cash paid for debt issuance costs |  |  |  | 0.0 | (6.8)
Proceeds from stock option exercises |  |  |  | 0.0 | 1.0
Repayment of capital lease |  |  |  | (0.2) | (0.1)
Cancellation of shares to cover employees' tax withholdings upon vesting of non-vested shares |  |  |  | (4.5) | (2.8)
Repurchase of common stock |  |  |  | (66.7) | (13.6)
Cash dividends and dividend equivalents paid |  |  |  | (26.4) | (24.4)
Cash dividends paid to Parent |  |  |  |  | 0.0
Intercompany loans payable |  |  |  | 0.0 | 0.0
Net cash (used in) provided by financing activities | [1] |  |  | (97.8) | 122.3
Net increase in cash, cash equivalents and restricted cash during the period |  |  |  | 19.4 | 1.2
Cash, cash equivalents and restricted cash at beginning of period |  |  |  | 67.7 | 83.7
Cash, cash equivalents and restricted cash at end of period |  | 87.1 | 84.9 | 87.1 | 84.9
Consolidating Adjustments |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |
Net cash (used in) provided by operating activities |  |  |  | 0.0 | (200.0)
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
Proceeds from disposal of property, plant and equipment |  |  |  | 0.0 |
Intercompany loans receivable |  |  |  | (104.8) | 103.3
Net cash used in investing activities |  |  |  | (104.8) | 103.3
Cash flows from financing activities |  |  |  |  |
Repayment of principal and redemption premium of 8.25% Senior Notes |  |  |  |  | 0.0
Issuance of 5.875% Senior Notes |  |  |  |  | 0.0
Cash paid for debt issuance costs |  |  |  |  | 0.0
Proceeds from stock option exercises |  |  |  |  | 0.0
Repayment of capital lease |  |  |  | 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 dividends and dividend equivalents paid |  |  |  | 0.0 | 0.0
Cash dividends paid to Parent |  |  |  |  | 200.0
Intercompany loans payable |  |  |  | 104.8 | (103.3)
Net cash (used in) provided by financing activities |  |  |  | 104.8 | 96.7
Net increase in cash, cash equivalents and restricted cash during the period |  |  |  | 0.0 | 0.0
Cash, cash equivalents and restricted cash at beginning of period |  |  |  | 0.0 | 0.0
Cash, cash equivalents and restricted cash at end of period |  | 0.0 | 0.0 | 0.0 | 0.0
Parent |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |
Net cash (used in) provided by operating activities |  |  |  | (12.8) | 189.7
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
Proceeds from disposal of property, plant and equipment |  |  |  | 0.0 |
Intercompany loans receivable |  |  |  | 110.4 | (205.6)
Net cash used in investing activities |  |  |  | 110.4 | (205.6)
Cash flows from financing activities |  |  |  |  |
Repayment of principal and redemption premium of 8.25% Senior Notes |  |  |  |  | (206.0)
Issuance of 5.875% Senior Notes |  |  |  |  | 375.0
Cash paid for debt issuance costs |  |  |  |  | (6.8)
Proceeds from stock option exercises |  |  |  |  | 1.0
Repayment of capital lease |  |  |  | 0.0 | 0.0
Cancellation of shares to cover employees' tax withholdings upon vesting of non-vested shares |  |  |  | (4.5) | (2.8)
Repurchase of common stock |  |  |  | (66.7) | (13.6)
Cash dividends and dividend equivalents paid |  |  |  | (26.4) | (24.4)
Cash dividends paid to Parent |  |  |  |  | 0.0
Intercompany loans payable |  |  |  | 0.0 | (106.5)
Net cash (used in) provided by financing activities |  |  |  | (97.6) | 15.9
Net increase in cash, cash equivalents and restricted cash during the period |  |  |  | 0.0 | 0.0
Cash, cash equivalents and restricted cash at beginning of period |  |  |  | 0.0 | 0.0
Cash, cash equivalents and restricted cash at end of period |  | 0.0 | 0.0 | 0.0 | 0.0
Guarantor Subsidiaries |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |
Net cash (used in) provided by operating activities |  |  |  | 137.4 | 109.3
Cash flows from investing activities |  |  |  |  |
Capital expenditures |  |  |  | (55.7) | (55.6)
Purchase of available for sale securities |  |  |  | (196.0) | (201.1)
Proceeds from disposition of available for sale securities |  |  |  | 237.2 | 30.0
Proceeds from disposal of property, plant and equipment |  |  |  | 0.6 |
Intercompany loans receivable |  |  |  | 0.0 | 106.0
Net cash used in investing activities |  |  |  | (13.9) | (120.7)
Cash flows from financing activities |  |  |  |  |
Repayment of principal and redemption premium of 8.25% Senior Notes |  |  |  |  | 0.0
Issuance of 5.875% Senior Notes |  |  |  |  | 0.0
Cash paid for debt issuance costs |  |  |  |  | 0.0
Proceeds from stock option exercises |  |  |  |  | 0.0
Repayment of capital lease |  |  |  | (0.2) | 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 dividends and dividend equivalents paid |  |  |  | 0.0 | 0.0
Cash dividends paid to Parent |  |  |  |  | (200.0)
Intercompany loans payable |  |  |  | (104.8) | 209.3
Net cash (used in) provided by financing activities |  |  |  | (105.0) | 9.3
Net increase in cash, cash equivalents and restricted cash during the period |  |  |  | 18.5 | (2.1)
Cash, cash equivalents and restricted cash at beginning of period |  |  |  | 65.1 | 83.0
Cash, cash equivalents and restricted cash at end of period |  | 83.6 | 80.9 | 83.6 | 80.9
Non-Guarantor Subsidiaries |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |
Net cash (used in) provided by operating activities |  |  |  | 6.9 | 8.4
Cash flows from investing activities |  |  |  |  |
Capital expenditures |  |  |  | (0.4) | (1.8)
Purchase of available for sale securities |  |  |  | 0.0 | 0.0
Proceeds from disposition of available for sale securities |  |  |  | 0.0 | 0.0
Proceeds from disposal of property, plant and equipment |  |  |  | 0.0 |
Intercompany loans receivable |  |  |  | (5.6) | (3.7)
Net cash used in investing activities |  |  |  | (6.0) | (5.5)
Cash flows from financing activities |  |  |  |  |
Repayment of principal and redemption premium of 8.25% Senior Notes |  |  |  |  | 0.0
Issuance of 5.875% Senior Notes |  |  |  |  | 0.0
Cash paid for debt issuance costs |  |  |  |  | 0.0
Proceeds from stock option exercises |  |  |  |  | 0.0
Repayment of capital lease |  |  |  | 0.0 | (0.1)
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 dividends and dividend equivalents paid |  |  |  | 0.0 | 0.0
Cash dividends paid to Parent |  |  |  |  | 0.0
Intercompany loans payable |  |  |  | 0.0 | 0.5
Net cash (used in) provided by financing activities |  |  |  | 0.0 | 0.4
Net increase in cash, cash equivalents and restricted cash during the period |  |  |  | 0.9 | 3.3
Cash, cash equivalents and restricted cash at beginning of period |  |  |  | 2.6 | 0.7
Cash, cash equivalents and restricted cash at end of period |  | $ 3.5 | $ 4.0 | $ 3.5 | $ 4.0
[1] | See Note 12 for the supplemental disclosure on non-cash transactions.

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