Supplemental Guarantor Information -Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 |
Supplemental Guarantor Information [Line Items] | | | |
Net cash provided by operating activities | | $ 99.1 | $ 175.9 |
Capital expenditures | | (22.9) | (21) |
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II | | 0 | 20.9 |
Net cash used in investing activities | | (23.4) | (41.9) |
Repayments of long-term debt | | (7.7) | (7.7) |
Proceeds from Issuance of Long-term Debt | | 525 | 0 |
Repayments of Long-term Debt | | (525.3) | (123.8) |
Payments of Financing Costs | | (6.8) | (6.4) |
Net change in accounts payable-inventory financing | | 41.2 | 55 |
Proceeds from stock option exercises | | 1 | 0.8 |
Proceeds from Coworker Stock Purchase Plan | | 4.2 | 2 |
Payments of Ordinary Dividends, Common Stock | | (23.2) | (14.6) |
Stock Repurchased and Retired During Period, Value | $ 0 | (91.7) | |
Excess Tax Benefit from Share-based Compensation, Financing Activities | | 0.2 | 0 |
Net cash used in financing activities | | (83.1) | (94.7) |
Effect of exchange rate changes on cash and cash equivalents | | (1.4) | 0.2 |
Net increase (decrease) in cash and cash equivalents | | (8.8) | 39.5 |
Cash and cash equivalents - beginning of period | | 344.5 | 188.1 |
Cash and cash equivalents - end of period | 227.6 | 335.7 | 227.6 |
Parent Guarantor [Member] | | | |
Supplemental Guarantor Information [Line Items] | | | |
Net cash provided by operating activities | | 0 | 0 |
Capital expenditures | | 0 | 0 |
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II | | | 0 |
Payments for Derivative Instrument, Financing Activities | | 0 | |
Net cash used in investing activities | | 0 | 0 |
Repayments of long-term debt | | 0 | 0 |
Proceeds from Issuance of Long-term Debt | | 0 | |
Repayments of Long-term Debt | | 0 | $ 0 |
Payments of Financing Costs | | 0 | |
Net change in accounts payable-inventory financing | | 0 | $ 0 |
Proceeds from stock option exercises | | 0 | 0 |
Proceeds from Coworker Stock Purchase Plan | | 0 | 0 |
Payments of Ordinary Dividends, Common Stock | | (23.2) | (14.6) |
Stock Repurchased and Retired During Period, Value | | (91.7) | |
Excess Tax Benefit from Share-based Compensation, Financing Activities | | 0 | |
Advances from (to) affiliates | | 114.9 | 14.6 |
Net cash used in financing activities | | 0 | 0 |
Effect of exchange rate changes on cash and cash equivalents | | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | | 0 | 0 |
Cash and cash equivalents - beginning of period | | 0 | 0 |
Cash and cash equivalents - end of period | 0 | 0 | 0 |
Subsidiary Issuer [Member] | | | |
Supplemental Guarantor Information [Line Items] | | | |
Net cash provided by operating activities | | (76.4) | (112.6) |
Capital expenditures | | (18.4) | (19.1) |
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II | | | 20.9 |
Payments for Derivative Instrument, Financing Activities | | (0.5) | |
Net cash used in investing activities | | (18.9) | (40) |
Repayments of long-term debt | | (7.7) | (7.7) |
Proceeds from Issuance of Long-term Debt | | 525 | |
Repayments of Long-term Debt | | (525.3) | (123.8) |
Payments of Financing Costs | | (6.8) | (6.4) |
Net change in accounts payable-inventory financing | | 0 | 0 |
Proceeds from stock option exercises | | 1 | 0.8 |
Proceeds from Coworker Stock Purchase Plan | | 4.2 | 2 |
Payments of Ordinary Dividends, Common Stock | | 0 | 0 |
Stock Repurchased and Retired During Period, Value | | 0 | |
Excess Tax Benefit from Share-based Compensation, Financing Activities | | 0.2 | |
Advances from (to) affiliates | | 72.2 | 308 |
Net cash used in financing activities | | 62.8 | 172.9 |
Effect of exchange rate changes on cash and cash equivalents | | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | | (32.5) | 20.3 |
Cash and cash equivalents - beginning of period | | 346.4 | 196.5 |
Cash and cash equivalents - end of period | 216.8 | 313.9 | 216.8 |
Guarantor Subsidiaries [Member] | | | |
Supplemental Guarantor Information [Line Items] | | | |
Net cash provided by operating activities | | 150.1 | 269.9 |
Capital expenditures | | (4.2) | (1.9) |
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II | | | 0 |
Payments for Derivative Instrument, Financing Activities | | 0 | |
Net cash used in investing activities | | (4.2) | (1.9) |
Repayments of long-term debt | | 0 | 0 |
Proceeds from Issuance of Long-term Debt | | 0 | |
Repayments of Long-term Debt | | 0 | $ 0 |
Payments of Financing Costs | | 0 | |
Net change in accounts payable-inventory financing | | 41.2 | $ 55 |
Proceeds from stock option exercises | | 0 | 0 |
Proceeds from Coworker Stock Purchase Plan | | 0 | 0 |
Payments of Ordinary Dividends, Common Stock | | 0 | 0 |
Stock Repurchased and Retired During Period, Value | | 0 | |
Excess Tax Benefit from Share-based Compensation, Financing Activities | | 0 | |
Advances from (to) affiliates | | (187.1) | (323) |
Net cash used in financing activities | | (145.9) | (268) |
Effect of exchange rate changes on cash and cash equivalents | | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | | 0 | 0 |
Cash and cash equivalents - beginning of period | | 0 | 0 |
Cash and cash equivalents - end of period | 0 | 0 | 0 |
Non-Guarantor Subsidiaries [Member] | | | |
Supplemental Guarantor Information [Line Items] | | | |
Net cash provided by operating activities | | 14.6 | 9.6 |
Capital expenditures | | (0.3) | 0 |
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II | | | 0 |
Payments for Derivative Instrument, Financing Activities | | 0 | |
Net cash used in investing activities | | (0.3) | 0 |
Repayments of long-term debt | | 0 | 0 |
Proceeds from Issuance of Long-term Debt | | 0 | |
Repayments of Long-term Debt | | 0 | $ 0 |
Payments of Financing Costs | | 0 | |
Net change in accounts payable-inventory financing | | 0 | $ 0 |
Proceeds from stock option exercises | | 0 | 0 |
Proceeds from Coworker Stock Purchase Plan | | 0 | 0 |
Payments of Ordinary Dividends, Common Stock | | 0 | 0 |
Stock Repurchased and Retired During Period, Value | | 0 | |
Excess Tax Benefit from Share-based Compensation, Financing Activities | | 0 | |
Advances from (to) affiliates | | 0 | 0.4 |
Net cash used in financing activities | | 0 | 0.4 |
Effect of exchange rate changes on cash and cash equivalents | | (1.4) | 0.2 |
Net increase (decrease) in cash and cash equivalents | | 12.9 | 10.2 |
Cash and cash equivalents - beginning of period | | 24.6 | 14 |
Cash and cash equivalents - end of period | 24.2 | 37.5 | 24.2 |
Co-Issuer [Member] | | | |
Supplemental Guarantor Information [Line Items] | | | |
Net cash provided by operating activities | | 0 | 0 |
Capital expenditures | | 0 | 0 |
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II | | | 0 |
Payments for Derivative Instrument, Financing Activities | | 0 | |
Net cash used in investing activities | | 0 | 0 |
Repayments of long-term debt | | 0 | 0 |
Proceeds from Issuance of Long-term Debt | | 0 | |
Repayments of Long-term Debt | | 0 | $ 0 |
Payments of Financing Costs | | 0 | |
Net change in accounts payable-inventory financing | | 0 | $ 0 |
Proceeds from stock option exercises | | 0 | 0 |
Proceeds from Coworker Stock Purchase Plan | | 0 | 0 |
Payments of Ordinary Dividends, Common Stock | | 0 | 0 |
Stock Repurchased and Retired During Period, Value | | 0 | |
Excess Tax Benefit from Share-based Compensation, Financing Activities | | 0 | |
Advances from (to) affiliates | | 0 | 0 |
Net cash used in financing activities | | 0 | 0 |
Effect of exchange rate changes on cash and cash equivalents | | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | | 0 | 0 |
Cash and cash equivalents - beginning of period | | 0 | 0 |
Cash and cash equivalents - end of period | 0 | 0 | 0 |
Consolidating Adjustments [Member] | | | |
Supplemental Guarantor Information [Line Items] | | | |
Net cash provided by operating activities | | 10.8 | 9 |
Capital expenditures | | 0 | 0 |
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II | | | 0 |
Payments for Derivative Instrument, Financing Activities | | 0 | |
Net cash used in investing activities | | 0 | 0 |
Repayments of long-term debt | | 0 | 0 |
Proceeds from Issuance of Long-term Debt | | 0 | |
Repayments of Long-term Debt | | 0 | $ 0 |
Payments of Financing Costs | | 0 | |
Net change in accounts payable-inventory financing | | 0 | $ 0 |
Proceeds from stock option exercises | | 0 | 0 |
Proceeds from Coworker Stock Purchase Plan | | 0 | 0 |
Payments of Ordinary Dividends, Common Stock | | 0 | 0 |
Stock Repurchased and Retired During Period, Value | | 0 | |
Excess Tax Benefit from Share-based Compensation, Financing Activities | | 0 | |
Advances from (to) affiliates | | 0 | 0 |
Net cash used in financing activities | | 0 | 0 |
Effect of exchange rate changes on cash and cash equivalents | | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | | 10.8 | 9 |
Cash and cash equivalents - beginning of period | | (26.5) | (22.4) |
Cash and cash equivalents - end of period | (13.4) | (15.7) | (13.4) |
Consolidated [Member] | | | |
Supplemental Guarantor Information [Line Items] | | | |
Net cash provided by operating activities | | 99.1 | 175.9 |
Capital expenditures | | (22.9) | (21) |
Payment of accrued charitable contribution related to the MPK Coworker Incentive Plan II | | | 20.9 |
Payments for Derivative Instrument, Financing Activities | | (0.5) | |
Net cash used in investing activities | | (23.4) | (41.9) |
Repayments of long-term debt | | (7.7) | (7.7) |
Proceeds from Issuance of Long-term Debt | | 525 | |
Repayments of Long-term Debt | | (525.3) | (123.8) |
Payments of Financing Costs | | (6.8) | (6.4) |
Net change in accounts payable-inventory financing | | 41.2 | 55 |
Proceeds from stock option exercises | | 1 | 0.8 |
Proceeds from Coworker Stock Purchase Plan | | 4.2 | 2 |
Payments of Ordinary Dividends, Common Stock | | (23.2) | (14.6) |
Stock Repurchased and Retired During Period, Value | | (91.7) | |
Excess Tax Benefit from Share-based Compensation, Financing Activities | | 0.2 | |
Advances from (to) affiliates | | 0 | 0 |
Net cash used in financing activities | | (83.1) | (94.7) |
Effect of exchange rate changes on cash and cash equivalents | | (1.4) | 0.2 |
Net increase (decrease) in cash and cash equivalents | | (8.8) | 39.5 |
Cash and cash equivalents - beginning of period | | 344.5 | 188.1 |
Cash and cash equivalents - end of period | $ 227.6 | $ 335.7 | $ 227.6 |