Income Taxes - Significant Components Of Deferred Tax Liabilities And Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Goodwill and other intangible assets	$ 17,028	$ 18,756
Accrued settlement	10,196	11,933
Pension and post-retirement liability	1,414	1,524
Warranty reserve	294	346
Deferred compensation	3,620	2,940
Contingent liability	1,816	1,663
Net operating loss/tax credit carryforward	1,438	1,602
Accounts receivable	261	214
Other	725	644
Total deferred tax assets	36,792	39,622
Less: valuation allowance	(1,072)	(30,707)
Net deferred tax asset	35,720	8,915
Deferred tax liabilities
Goodwill and other intangibles	(4,454)	(5,020)
Depreciation	(5,946)	(6,625)
Unremiited earnings of foreign subsidiary	(390)	(160)
Inventory	(946)	(2,125)
Other	(97)	(272)
Total deferred tax liability	(11,833)	(14,202)
Net deferred tax assets (liabilities)	$ 23,887
Net deferred tax assets (liabilities)		$ 5,287