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Revenue and Segment Information - Revenue by Geographical Location (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Disaggregation of Revenue [Line Items] |  |  |  |
Net Sales | $ 257,572 | $ 240,455 | $ 752,784 | $ 669,120
United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net Sales | 188,037 | 174,807 | 536,505 | 486,513
United Kingdom |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net Sales | 15,141 | 13,319 | 41,003 | 35,745
France |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net Sales | 17,048 | 21,660 | 66,321 | 62,563
Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net Sales | 15,167 | 13,064 | 44,819 | 35,242
Australia |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net Sales | 2,023 | 2,203 | 7,550 | 10,093
Brazil |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net Sales | 3,050 | 4,058 | 13,368 | 6,579
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net Sales | $ 17,106 | $ 11,344 | $ 43,218 | $ 32,385

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 32 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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