Financial Statement Information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Inventory [Line Items]
Inventories	$ 2,718,630	$ 2,772,777
Accounts Receivable, Allowance for Credit Loss, Current	60,000	53,000
AftermarketAndRefurbishedProducts [Member]
Inventory [Line Items]
Inventories	2,254,953	2,297,895
SalvageAndRemanufacturedProducts [Member]
Inventory [Line Items]
Inventories	436,132	447,908
ManufacturedProducts [Member]
Inventory [Line Items]
Inventories	27,545	26,974
Inventory, Raw Materials and Supplies, Gross	19,000	17,000
Inventory, Work in Process, Gross	4,000	3,000
Inventory, Finished Goods, Gross	5,000	$ 6,000
Accounting Standards Update 2016-13 [Member]
Inventory [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 2,519

Amount of allowance for credit loss on accounts receivable, classified as current.

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