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Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 87,003 | $ 158,740
Accumulated Amortization | (23,484) | (23,813)
Net Carrying Amount | 63,519 | 134,927
Non-competition agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 4,219 | 6,984
Accumulated Amortization | (2,217) | (2,495)
Net Carrying Amount | 2,002 | 4,489
Patents [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 373 | 378
Accumulated Amortization | (143) | (124)
Net Carrying Amount | 230 | 254
Customer relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 36,843 | 94,338
Accumulated Amortization | (6,582) | (8,441)
Net Carrying Amount | 30,261 | 85,897
Supplier relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value |  | 350
Accumulated Amortization |  | (335)
Net Carrying Amount |  | 15
Trademarks and trade names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 10,018 | 14,252
Accumulated Amortization | (3,238) | (3,025)
Net Carrying Amount | 6,780 | 11,227
Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 35,550 | 42,438
Accumulated Amortization | (11,304) | (9,393)
Net Carrying Amount | $ 24,246 | $ 33,045
Weighted Average [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period In Years | 15 years |
Weighted Average [Member] | Non-competition agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period In Years | 5 years | 4 years
Weighted Average [Member] | Patents [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period In Years | 10 years | 10 years
Weighted Average [Member] | Customer relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period In Years | 18 years | 16 years
Weighted Average [Member] | Supplier relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period In Years |  | 5 years
Weighted Average [Member] | Trademarks and trade names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period In Years | 14 years | 13 years
Weighted Average [Member] | Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Amortization Period In Years | 14 years | 13 years

X
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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