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Geographic Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of long-lived assets |  |  |  | $ 2,900 us-gaap_AssetImpairmentCharges |  |  |  |  | $ 3,046 us-gaap_AssetImpairmentCharges | $ 0 us-gaap_AssetImpairmentCharges | $ 0 us-gaap_AssetImpairmentCharges
Net sales | 70,281 us-gaap_SalesRevenueNet | 74,128 us-gaap_SalesRevenueNet | 72,080 us-gaap_SalesRevenueNet | 69,204 us-gaap_SalesRevenueNet | 65,738 us-gaap_SalesRevenueNet | 68,235 us-gaap_SalesRevenueNet | 68,317 us-gaap_SalesRevenueNet | 67,213 us-gaap_SalesRevenueNet | 285,693 us-gaap_SalesRevenueNet | 269,503 us-gaap_SalesRevenueNet | 273,562 us-gaap_SalesRevenueNet
Long-lived assets | 41,588 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 58,974 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 41,588 us-gaap_PropertyPlantAndEquipmentNet | 58,974 us-gaap_PropertyPlantAndEquipmentNet | 66,981 us-gaap_PropertyPlantAndEquipmentNet
United States |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 257,428 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US | 241,115 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US | 245,196 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US
Long-lived assets | 39,171 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US |  |  |  | 56,162 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US |  |  |  | 39,171 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US | 56,162 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US | 63,730 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US
Canada |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 28,265 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_CA | 28,388 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_CA | 28,366 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_CA
Long-lived assets | $ 2,417 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CA |  |  |  | $ 2,812 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CA |  |  |  | $ 2,417 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CA | $ 2,812 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CA | $ 3,251 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CA

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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