Segment Reporting and Foreign Operations - Assets, Depreciation, Amortization and Capital Expenditures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 1,648,294	$ 1,664,396	$ 1,757,321
Depreciation and amortization	84,066	94,070	92,100
Capital expenditures	27,939	45,988	78,173
Cardiovascular
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	1,635,676	1,654,866	1,745,057
Depreciation and amortization	83,000	93,160	91,151
Capital expenditures	27,557	45,803	77,631
Endoscopy
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	12,618	9,530	12,264
Depreciation and amortization	1,066	910	949
Capital expenditures	$ 382	$ 185	$ 542