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Acquisitions (Narratives) (Details) (USD $) | 3 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended |  | 0 Months Ended | 2 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Oct. 02, 2012 AACOA | Dec. 31, 2012 AACOA | Mar. 31, 2013 AACOA | Oct. 24, 2011 Terphane | Dec. 31, 2011 Terphane
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of outstanding equity interests acquired |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  | 100.00% |
Total purchase price |  |  |  |  |  |  |  |  |  |  |  | $ 54,100,000 |  |  | $ 182,700,000 |
Cash received from seller |  |  |  |  |  |  |  |  |  |  |  |  |  | 600,000 |  |
Financing used to fund purchase price from existing credit facility |  |  |  |  |  |  |  |  |  |  |  | 350,000,000 |  |  |  |
Available cash used to fund purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 57,700,000 |
Financing used to fund purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 125,000,000 |
Sales | 231,096,000 | 243,194,000 | 243,530,000 | 241,526,000 | 233,038,000 | 216,648,000 | 215,859,000 | 216,644,000 | 959,346,000 | 882,188,000 | 794,420,000 |  | 19,900,000 |  |  | 29,200,000
Net income from continuing operations | $ 9,402,000 | $ 7,428,000 | $ 9,590,000 | $ 9,517,000 | $ 13,850,000 | $ 14,210,000 | $ 7,388,000 | $ 7,737,000 | $ 35,937,000 | $ 43,185,000 | $ 28,545,000 |  | $ 1,000,000 |  |  | $ 2,000,000

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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