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International Operations and Geographic Information (Schedule of Geographic Net Sales and Location of Long-lived assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | $ 879,577 | $ 839,055 | $ 682,090
Long-lived assets | 239,301 | 235,684 | 100,852
United States |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 635,923 | 571,817 | 449,119
Long-lived assets | 174,811 | 168,404 | 42,053
United Kingdom |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 59,621 | 58,976 | 36,892
Long-lived assets | 20,338 | 20,840 | 19,718
France |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 80,762 | 93,699 | 97,959
Long-lived assets | 18,755 | 21,728 | 25,751
Canada |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 44,388 | 54,087 | 45,212
Long-lived assets | 21,466 | 23,354 | 12,562
Australia |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 13,801 | 13,702 | 11,519
Long-lived assets | 1,189 | 1,358 | 768
Other |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 45,082 | 46,774 | 41,389
Brazil |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-lived assets | $ 2,742 | $ 0 | $ 0

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