Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Assets and Liabilities [Line Items]
Net operating loss carryforwards	$ 92,784	$ 95,960
Inventory adjustments	43,009	45,201
Allowance for doubtful accounts	16,513	17,008
Accrued expenses	52,664	56,222
Interest carryforward	64,717	46,876
Stock-based compensation awards	11,507	14,266
Other comprehensive income items	6,206	15,055
Other	1,470	3,381
Deferred Tax Assets, Gross	288,870	293,969
Valuation Allowance	(16,156)	(24,409)
Total deferred tax assets	272,714	269,560
Goodwill	(54,261)	(31,107)
Depreciation	(65,309)	(61,896)
Intangible Assets	(66,919)	(61,690)
Total deferred tax liabilities	(186,489)	(154,693)
Total net deferred tax assets	$ 86,225	$ 114,867