Accrued Expenses Warranty Schedule (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2020
Product Liability Contingency
Balance as of January 1, 2020		$ 11,626
Warranties provided during the period		4,311
Settlements made during the period		(5,926)
Changes in liability for pre-existing warranties during the period, including expirations		1,133
Balance as of September 30, 2020	$ 11,144	$ 11,144
Extended Product Warranty Accrual, Increase for Warranties Issued	$ 768

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

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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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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 (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties.

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

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