Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets and Liabilities [Line Items]
Net operating loss carryforwards	$ 113,327	$ 102,710
Inventory adjustments	42,376	56,890
Allowance for doubtful accounts	12,368	14,526
Accrued expenses	28,229	40,179
Interest carryforward	15,964	19,073
Stock-based compensation awards	12,982	24,505
Other comprehensive income items	0	10,859
Deferred Tax Assets, Tax Deferred Expense, Integration and Restructuring	6,726	2,970
Other	17,015	17,830
Deferred Tax Assets, Gross	248,987	289,542
Valuation Allowance	(13,915)	(15,323)
Total deferred tax assets	235,072	274,219
Goodwill	(109,994)	(142,541)
Depreciation	(116,725)	(94,838)
Intangible Assets	(18,760)	(21,118)
Deferred Tax Liabilities, Deferred Expense, Capitalized Software	0	0
Deferred Tax Liabilities, Other Comprehensive Income	(5,542)	0
Deferred Tax Liabilities, Gross	(251,021)	(258,497)
Total deferred tax liabilities	$ (15,949)
Total net deferred tax assets (liabilities)		$ 15,722