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Guarantor and Non-Guarantor Financial Statements (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended |  | 3 Months Ended | 6 Months Ended |  | 3 Months Ended | 6 Months Ended |  | 3 Months Ended | 6 Months Ended |  | 3 Months Ended | 6 Months Ended |  |
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Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011 | Dec. 31, 2011 | Jun. 30, 2012 Parent | Jun. 30, 2011 Parent | Jun. 30, 2012 Parent | Jun. 30, 2011 Parent | Dec. 31, 2011 Parent | Jun. 30, 2012 Guarantor Subsidiaries | Jun. 30, 2011 Guarantor Subsidiaries | Jun. 30, 2012 Guarantor Subsidiaries | Jun. 30, 2011 Guarantor Subsidiaries | Dec. 31, 2011 Guarantor Subsidiaries | Jun. 30, 2012 Non-Guarantor Subsidiaries | Jun. 30, 2011 Non-Guarantor Subsidiaries | Jun. 30, 2012 Non-Guarantor Subsidiaries | Jun. 30, 2011 Non-Guarantor Subsidiaries | Dec. 31, 2011 Non-Guarantor Subsidiaries | Jun. 30, 2012 Consolidating Adjustments | Jun. 30, 2011 Consolidating Adjustments | Jun. 30, 2012 Consolidating Adjustments | Jun. 30, 2011 Consolidating Adjustments | Dec. 31, 2011 Consolidating Adjustments | May 23, 2012 Senior Notes
Condensed Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 225.0
Current assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 317.8 | 59.8 |  | 317.8 | 59.8 |  |  | 5.0 | 4.9 | 5.0 | 4.9 |  | 311.9 | 54.4 | 311.9 | 54.4 |  | 0.9 | 0.5 | 0.9 | 0.5 |  | 0 | 0 | 0 | 0 |  |
Receivables |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trade, less allowance for doubtful receivables | 131.3 |  |  | 131.3 |  |  | 98.9 | 0 |  | 0 |  | 0 | 127.7 |  | 127.7 |  | 96.0 | 3.6 |  | 3.6 |  | 2.9 | 0 |  | 0 |  | 0 |
Intercompany receivables | 0 |  |  | 0 |  |  | 0 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 2.3 | 4.5 |  | 4.5 |  | 0.2 | (4.5) |  | (4.5) |  | (2.5) |
Other | 1.9 |  |  | 1.9 |  |  | 1.2 | 0 |  | 0 |  | 0 | 1.6 |  | 1.6 |  | 0.8 | 0.3 |  | 0.3 |  | 0.4 | 0 |  | 0 |  | 0 |
Inventories | 196.8 |  |  | 196.8 |  |  | 205.7 | 0 |  | 0 |  | 0 | 189.1 |  | 189.1 |  | 196.6 | 7.7 |  | 7.7 |  | 9.1 | 0 |  | 0 |  | 0 |
Prepaid expenses and other current assets | 74.7 |  |  | 74.7 |  |  | 78.9 | 0 |  | 0 |  | 6.9 | 74.1 |  | 74.1 |  | 71.0 | 0.6 |  | 0.6 |  | 1.0 | 0 |  | 0 |  | 0 |
Total current assets | 722.5 |  |  | 722.5 |  |  | 434.5 | 5.0 |  | 5.0 |  | 11.9 | 704.4 |  | 704.4 |  | 409.7 | 17.6 |  | 17.6 |  | 15.4 | (4.5) |  | (4.5) |  | (2.5) |
Investments in and advances to unconsolidated affiliates | 0 |  |  | 0 |  |  | 0 | 1,168.3 |  | 1,168.3 |  | 1,036.9 | 9.1 |  | 9.1 |  | 5.8 | 0 |  | 0 |  | 0 | (1,177.4) |  | (1,177.4) |  | (1,042.7) |
Property, plant, and equipment - net | 373.0 |  |  | 373.0 |  |  | 367.8 | 0 |  | 0 |  | 0 | 361.1 |  | 361.1 |  | 355.9 | 11.9 |  | 11.9 |  | 11.9 | 0 |  | 0 |  | 0 |
Intercompany long-term receivables | 0 |  |  | 0 |  |  | 0 | 0 |  | 0 |  | 0 | (188.1) |  | (188.1) |  | 22.0 | 2.6 |  | 2.6 |  | 2.5 | 185.5 |  | 185.5 |  | (24.5) |
Net asset in respect of VEBA | 262.3 |  |  | 262.3 |  |  | 144.7 | 0 |  | 0 |  | 0 | 262.3 |  | 262.3 |  | 144.7 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 0 |
Deferred tax assets - net | 156.3 |  |  | 156.3 |  |  | 226.9 | 0 |  | 0 |  | 0 | 148.2 |  | 148.2 |  | 218.9 | (0.6) |  | (0.6) |  | (0.6) | 8.7 |  | 8.7 |  | 8.6 |
Intangible assets - net | 36.3 |  |  | 36.3 |  |  | 37.2 | 0 |  | 0 |  | 0 | 36.3 |  | 36.3 |  | 37.2 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 0 |
Goodwill | 37.2 |  |  | 37.2 |  |  | 37.2 | 0 |  | 0 |  | 0 | 37.2 |  | 37.2 |  | 37.2 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 0 |
Other assets | 73.8 |  |  | 73.8 |  |  | 72.3 | 51.5 |  | 51.5 |  | 50.2 | 19.3 |  | 19.3 |  | 19.2 | 3.0 |  | 3.0 |  | 2.9 | 0 |  | 0 |  | 0 |
Total | 1,661.4 |  |  | 1,661.4 |  |  | 1,320.6 | 1,224.8 |  | 1,224.8 |  | 1,099.0 | 1,389.8 |  | 1,389.8 |  | 1,250.6 | 34.5 |  | 34.5 |  | 32.1 | (987.7) |  | (987.7) |  | (1,061.1) |
Current liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable | 66.5 |  |  | 66.5 |  |  | 62.2 | 0.5 |  | 0.5 |  | 0 | 59.2 |  | 59.2 |  | 57.1 | 6.8 |  | 6.8 |  | 5.1 | 0 |  | 0 |  | 0 |
Intercompany liabilities | 0 |  |  | 0 |  |  | 0 | 0 |  | 0 |  | 0 | 4.5 |  | 4.5 |  | 0.2 | 0 |  | 0 |  | 2.3 | (4.5) |  | (4.5) |  | (2.5) |
Accrued salaries, wages, and related expenses | 31.3 |  |  | 31.3 |  |  | 30.9 | 0 |  | 0 |  | 0 | 28.9 |  | 28.9 |  | 28.7 | 2.4 |  | 2.4 |  | 2.2 | 0 |  | 0 |  | 0 |
Other accrued liabilities | 46.3 |  |  | 46.3 |  |  | 41.0 | 3.9 |  | 3.9 |  | 2.2 | 40.9 |  | 40.9 |  | 38.0 | 1.5 |  | 1.5 |  | 0.8 | 0 |  | 0 |  | 0 |
Payable to affiliate | 18.3 |  |  | 18.3 |  |  | 14.4 | 0 |  | 0 |  | 0 | 18.3 |  | 18.3 |  | 14.4 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 0 |
Long-term debt-current portion | 0 |  |  | 0 |  |  | 1.3 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 1.3 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 0 |
Total current liabilities | 162.4 |  |  | 162.4 |  |  | 149.8 | 4.4 |  | 4.4 |  | 2.2 | 151.8 |  | 151.8 |  | 139.7 | 10.7 |  | 10.7 |  | 10.4 | (4.5) |  | (4.5) |  | (2.5) |
Net liability in respect of VEBA | 20.1 |  |  | 20.1 |  |  | 20.6 | 0 |  | 0 |  | 0 | 20.1 |  | 20.1 |  | 20.6 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 0 |
Intercompany long-term liabilities | 0 |  |  | 0 |  |  | 0 | (188.1) |  | (188.1) |  | 22.0 | 2.6 |  | 2.6 |  | 2.5 | 0 |  | 0 |  | 0 | 185.5 |  | 185.5 |  | (24.5) |
Long-term liabilities | 118.7 |  |  | 118.7 |  |  | 126.0 | 48.3 |  | 48.3 |  | 54.0 | 53.0 |  | 53.0 |  | 53.5 | 17.4 |  | 17.4 |  | 18.5 | 0 |  | 0 |  | 0 |
Long-term debt | 376.6 |  |  | 376.6 |  |  | 151.4 | 376.6 |  | 376.6 |  | 148.0 | 0 |  | 0 |  | 3.4 | 0 |  | 0 |  | 0 | 0 |  | 0 |  | 0 |
Total liabilities | 677.8 |  |  | 677.8 |  |  | 447.8 | 241.2 |  | 241.2 |  | 226.2 | 227.5 |  | 227.5 |  | 219.7 | 28.1 |  | 28.1 |  | 28.9 | 181.0 |  | 181.0 |  | (27.0) |
Total stockholders' equity | 983.6 |  |  | 983.6 |  |  | 872.8 | 983.6 |  | 983.6 |  | 872.8 | 1,162.3 |  | 1,162.3 |  | 1,030.9 | 6.4 |  | 6.4 |  | 3.2 | (1,168.7) |  | (1,168.7) |  | (1,034.1) |
Total | 1,661.4 |  |  | 1,661.4 |  |  | 1,320.6 | 1,224.8 |  | 1,224.8 |  | 1,099.0 | 1,389.8 |  | 1,389.8 |  | 1,250.6 | 34.5 |  | 34.5 |  | 32.1 | (987.7) |  | (987.7) |  | (1,061.1) |
CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | 345.2 | 338.8 |  | 710.6 | 661.4 |  |  | 0 | 0 | 0 | 0 |  | 335.0 | 328.7 | 690.5 | 641.6 |  | 32.1 | 35.6 | 64.7 | 70.6 |  | (21.9) | (25.5) | (44.6) | (50.8) |  |
Cost of products sold: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of products sold, excluding depreciation and amortization | 284.5 | 300.0 |  | 579.5 | 580.9 |  |  | 0 | 0 | 0 | 0 |  | 276.9 | 292.2 | 564.3 | 564.8 |  | 29.0 | 32.9 | 58.9 | 66.0 |  | (21.4) | (25.1) | (43.7) | (49.9) |  |
Depreciation and amortization | 6.6 | 6.4 |  | 12.9 | 12.7 |  |  | 0 | 0 | 0 | 0 |  | 6.3 | 6.1 | 12.4 | 12.2 |  | 0.3 | 0.3 | 0.5 | 0.5 |  | 0 | 0 | 0 | 0 |  |
Selling, administrative, research and development, and general | 14.4 | 18.0 |  | 32.3 | 33.6 |  |  | 0.8 | 0.9 | 1.3 | 1.3 |  | 13.5 | 13.9 | 31.2 | 27.7 |  | 0.7 | 3.6 | 0.7 | 5.5 |  | (0.6) | (0.4) | (0.9) | (0.9) |  |
Other operating charges (benefits), net | 0.1 | (0.3) |  | 0.1 | (0.3) |  |  | 0 | 0 | 0 | 0 |  | 0.1 | 0.1 | 0.1 | 0.1 |  | 0 | (0.4) | 0 | (0.4) |  | 0 | 0 | 0 | 0 |  |
Total costs and expenses | 305.6 | 324.1 |  | 624.8 | 626.9 |  |  | 0.8 | 0.9 | 1.3 | 1.3 |  | 296.8 | 312.3 | 608.0 | 604.8 |  | 30.0 | 36.4 | 60.1 | 71.6 |  | (22.0) | (25.5) | (44.6) | (50.8) |  |
Operating income | 39.6 | 14.7 |  | 85.8 | 34.5 |  |  | (0.8) | (0.9) | (1.3) | (1.3) |  | 38.2 | 16.4 | 82.5 | 36.8 |  | 2.1 | (0.8) | 4.6 | (1.0) |  | 0.1 | 0 | 0 | 0 |  |
Other (expense) income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense | (6.5) | (4.4) |  | (10.6) | (8.9) |  |  | (6.2) | (3.9) | (10.2) | (7.7) |  | (0.3) | (0.5) | (0.4) | (1.2) |  | 0 | 0 | 0 | 0 |  | 0 | 0 | 0 | 0 |  |
Other income (expense), net | 1.1 | (3.4) |  | 1.8 | (1.7) |  |  | 0.7 | (3.5) | 1.2 | (1.9) |  | 0.3 | 0.1 | 0.5 | 0.2 |  | 0.1 | 0 | 0.1 | 0 |  | 0 | 0 | 0 | 0 |  |
(Loss) income before income taxes | 34.2 | 6.9 |  | 77.0 | 23.9 |  |  | (6.3) | (8.3) | (10.3) | (10.9) |  | 38.2 | 16.0 | 82.6 | 35.8 |  | 2.2 | (0.8) | 4.7 | (1.0) |  | 0.1 | 0 | 0 | 0 |  |
Income tax provision | (13.2) | (2.8) |  | (29.5) | (9.0) |  |  | 0 | 0 | 0 | 0 |  | (14.7) | (6.0) | (31.5) | (13.0) |  | (0.7) | (0.7) | (1.4) | (1.1) |  | 2.2 | 3.9 | 3.4 | 5.1 |  |
Earnings (losses) in equity of subsidiaries | 0 | 0 |  | 0 | 0 |  |  | 27.3 | 12.4 | 57.8 | 25.8 |  | 1.6 | (1.5) | 3.3 | (2.1) |  | 0 | 0 | 0 | 0 |  | (28.9) | (10.9) | (61.1) | (23.7) |  |
Net income | 21.0 | 4.1 | [1] | 47.5 | 14.9 | [1] |  | 21.0 | 4.1 | 47.5 | 14.9 |  | 25.1 | 8.5 | 54.4 | 20.7 |  | 1.5 | (1.5) | 3.3 | (2.1) |  | (26.6) | (7.0) | (57.7) | (18.6) |  |
Comprehensive income (loss) | 22.5 | 4.9 |  | 50.1 | 16.1 |  |  | 22.5 | 4.9 | 50.1 | 16.1 |  | 26.2 | 9.3 | 56.9 | 22.2 |  | 1.9 | (1.5) | 3.4 | (2.4) |  | (28.1) | (7.8) | (60.3) | (19.8) |  |
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by operating activities |  |  |  | 74.7 | 32.9 |  |  |  |  | (213.6) | 10.4 |  |  |  | 288.7 | 22.0 |  |  |  | (0.4) | 0.5 |  |  |  | 0 | 0 |  |
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures | (7.9) | (7.9) |  | (16.9) | (14.1) |  |  |  |  | 0 | 0 |  |  |  | (16.4) | (13.1) |  |  |  | (0.5) | (1.0) |  |  |  | 0 | 0 |  |
Change in restricted cash |  |  |  | 7.2 | 0 |  |  |  |  | 6.9 |  |  |  |  | 0.3 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |
Purchase of available for sale securities |  |  |  | (0.3) | (0.3) |  |  |  |  | 0 | 0 |  |  |  | (0.3) | (0.3) |  |  |  | 0 | 0 |  |  |  | 0 | 0 |  |
Cash payment for acquisition of manufacturing facility and related assets (net of $4.9 of cash received in connection with the acquisition in 2011) |  |  |  | 0 | (83.2) |  |  |  |  |  | 0 |  |  |  |  | (83.2) |  |  |  |  | 0 |  |  |  |  | 0 |  |
Net cash provided by (used in) investing activities |  |  |  | (10.0) | (97.6) |  |  |  |  | 6.9 | 0 |  |  |  | (16.4) | (96.6) |  |  |  | (0.5) | (1.0) |  |  |  | 0 | 0 |  |
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of senior notes |  |  |  | 225.0 | 0 |  |  |  |  | 225.0 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |
Cash paid for financing costs |  |  |  | (6.4) | 0 |  |  |  |  | (6.4) |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |
Repayment of promissory notes |  |  |  | (4.7) | (0.6) |  |  |  |  | 0 | 0 |  |  |  | (4.7) | (0.6) |  |  |  | 0 | 0 |  |  |  | 0 | 0 |  |
Excess tax benefit upon vesting of non-vested shares and dividend payment on unvested shares expected to vest |  |  |  | 1.3 | 0 |  |  |  |  | 0 |  |  |  |  | 1.3 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |
Repurchase of common stock to cover employees' tax withholdings upon vesting of non-vested shares |  |  |  | (2.1) | (1.1) |  |  |  |  | (2.1) | (1.1) |  |  |  | 0 | 0 |  |  |  | 0 | 0 |  |  |  | 0 | 0 |  |
Cash dividend paid to stockholders |  |  |  | (9.8) | (9.4) |  |  |  |  | (9.8) | (9.4) |  |  |  | 0 | 0 |  |  |  | 0 | 0 |  |  |  | 0 | 0 |  |
Net cash provided by (used in) financing activities |  |  |  | 203.3 | (11.1) |  |  |  |  | 206.7 | (10.5) |  |  |  | (3.4) | (0.6) |  |  |  | 0 | 0 |  |  |  | 0 | 0 |  |
Net increase (decrease) in cash and cash equivalents during the period |  |  |  | 268.0 | (75.8) |  |  |  |  | 0 | (0.1) |  |  |  | 268.9 | (75.2) |  |  |  | (0.9) | (0.5) |  |  |  | 0 | 0 |  |
Cash and cash equivalents at beginning of period |  |  |  | 49.8 | 135.6 |  |  |  |  | 5.0 | 5.0 |  |  |  | 43.0 | 129.6 |  |  |  | 1.8 | 1.0 |  |  |  | 0 | 0 |  |
Cash and cash equivalents at end of period | $ 317.8 | $ 59.8 |  | $ 317.8 | $ 59.8 |  |  | $ 5.0 | $ 4.9 | $ 5.0 | $ 4.9 |  | $ 311.9 | $ 54.4 | $ 311.9 | $ 54.4 |  | $ 0.9 | $ 0.5 | $ 0.9 | $ 0.5 |  | $ 0 | $ 0 | $ 0 | $ 0 |  |
[1] | Total comprehensive income and components of other comprehensive income (loss) were previously included in the Statement of Stockholders' Equity for interim reporting periods prior to 2012. The Company adopted ASU No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income, beginning with the annual period ended December 31, 2011 and presented the Statement of Comprehensive Income as its own separate statement. As such, the "Previously Reported" column reflects the changes in the presentation.

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- Definition The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e540-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 30 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A5 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 8, 9, 10, 11, 12, 13, 14 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6508144 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e557-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 + Details
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