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Consolidated Statements of Cash Flows (Parenthetical) (USD $) | 9 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
Supplemental Schedule of Noncash Investing and Financing Activities |  |
Cash dividends declared, but not yet paid | $ 2,700,000 | $ 2,700,000
Capital expenditure accrual | 2,800,000 |
Portion of equity awards granted that was previously recorded in accrued expenses and other current liabilities |  | 2,700,000
Assets acquired, net of cash | 54,998,000 | 140,725,000
Liabilities assumed | 30,286,000 | 69,859,000
Promissory notes issued for acquisition | 3,000,000 | 7,200,000
Purchase price adjustments | $ 2,000,000 |

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