Accrued Product Warranties (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) months	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Standard and Extended Product Warranty Accrual	$ 21,522	$ 19,144	$ 18,583	$ 18,052
Standard and Extended Product Warranty Accrual, Decrease for Payments	(8,490)	(14,925)	(17,347)
Warranty provisions for products sold	10,514	14,616	17,888
Business acquisitions and disposals	0	899	8
Currency translation adjustments and other	354	(29)	(18)
Accrued product warranties	17,019	14,611	15,204
Long-term accrued product warranties, end of ear	$ 4,503	$ 4,533	$ 3,379
Minimum
Product warranty term \| months	12
Product warranty term \| months	12
Maximum
Product warranty term \| months	24
Product warranty term \| months	24

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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Amount of increase in the standard and extended product warranty accrual from a business acquisition.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers.

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Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty.

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Amount of increase in the standard and extended product warranty accrual from warranties issued.

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Amount of foreign currency translation gain (loss) which decreases (increases) the standard and extended product warranty accrual.

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