v2.4.0.8

Financial Statement Information - Additional Information (Details) (USD $)	3 Months Ended					3 Months Ended					3 Months Ended				3 Months Ended				3 Months Ended				3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014 Aftermarket and refurbished products	Mar. 31, 2014 Salvage and remanufactured products	Mar. 31, 2014 Salvage Mechanical Products	Mar. 31, 2014 Remanufactured Engines	Mar. 31, 2014 All 2014 Acquisitions	Mar. 31, 2014 Keystone Specialty	Mar. 31, 2014 Trade names and trademarks	Mar. 31, 2014 Trade names and trademarks Minimum	Mar. 31, 2014 Trade names and trademarks Maximum	Mar. 31, 2014 Trade names and trademarks Keystone Specialty	Mar. 31, 2014 Software and technology related assets	Mar. 31, 2014 Software and technology related assets Minimum	Mar. 31, 2014 Software and technology related assets Maximum	Mar. 31, 2014 Software and technology related assets Keystone Specialty	Mar. 31, 2014 Customer relationships	Mar. 31, 2014 Customer relationships Minimum	Mar. 31, 2014 Customer relationships Maximum	Mar. 31, 2014 Customer relationships Keystone Specialty	Mar. 31, 2014 Covenants not to compete	Mar. 31, 2014 Covenants not to compete Minimum	Mar. 31, 2014 Covenants not to compete Maximum	Mar. 31, 2014 ACM Parts	Sep. 30, 2013 ACM Parts
Finite-Lived Intangible Assets
Reserve for estimated returns, discounts and allowances	$ 29,900,000		$ 26,600,000
Reserve for uncollectible accounts	17,700,000		14,400,000
Inventory recognized for business combinations				151,700,000	9,400,000			161,135,000	151,743,000
Intangible assets recognized								82,900,000	70,830,000	21,800,000			20,900,000	26,800,000			26,800,000	34,200,000			23,100,000	100,000
Useful life, years											10 years	30 years			5 years	6 years			5 years	15 years			1 year	5 years
Amortization expense	7,400,000	2,300,000
Estimated annual amortization expense in year one	30,200,000
Estimated annual amortization expense in year two	27,300,000
Estimated annual amortization expense in year three	24,400,000
Estimated annual amortization expense in year four	22,400,000
Estimated annual amortization expense in year five	17,900,000
Standard warranty period						6 months	3 years
Investment in unconsolidated subsidiaries	$ 10,700,000																								$ 9,000,000
Investment in unconsolidated subsidiary, ownership percentage																										49.00%
Equity method investment, ownership percentage of other investors																										51.00%

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The percentage of ownership of common stock or equity participation in an investee accounted for under the equity method of accounting attributable to entities other than the reporitng entity.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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