The aggregate refunds recognized during an accounting period due to goods returned by customers (other than under warranty provisions). Returns are a deduction from gross revenue in arriving at net revenue.

No definition available.

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Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Amount of valuation and qualifying accounts and reserves.

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Summary of Significant Accounting Policies, Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue Recognition [Abstract]
Revenue	$ 2,420,416	$ 2,679,008	$ 2,279,099
Revenue Recognition [Abstract]
Sales returns	52,200	52,000	53,800
ASC Topic 606 [Member]
Revenue Recognition [Abstract]
Cumulative impact on opening retained earnings			$ 13,000
Allowance for Product Returns [Member]
Revenue Recognition [Abstract]
Accrued reserve	3,900	3,600
Impact of Adopting ASC Topic 606 [Member] \| ASC Topic 606 [Member]
Revenue Recognition [Abstract]
Revenue	$ 1,300	$ 1,100