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Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Statement of Financial Position [Abstract] |  |
Allowances for doubtful accounts | $ 3.7 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | $ 3.9 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Inventory allowances | $ 9.8 us-gaap_InventoryValuationReserves | $ 10.2 us-gaap_InventoryValuationReserves
Common stock, par value | $ 0.01 us-gaap_CommonStockParOrStatedValuePerShare | $ 0.01 us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized | 40,000,000 us-gaap_CommonStockSharesAuthorized | 40,000,000 us-gaap_CommonStockSharesAuthorized
Common stock, shares issued | 29,554,500 us-gaap_CommonStockSharesIssued | 29,554,500 us-gaap_CommonStockSharesIssued
Treasury stock, shares | 5,291,396 us-gaap_TreasuryStockShares | 5,263,481 us-gaap_TreasuryStockShares

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