Acquisitions and Other Strategic Transactions - Purchase Price Allocation (Details) - USD ($) $ in Thousands								12 Months Ended
	Nov. 06, 2020	Aug. 01, 2019	Jun. 14, 2019	Dec. 14, 2018	Nov. 13, 2018	May 23, 2018	Feb. 14, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets Acquired
Goodwill								$ 363,533	$ 353,193	$ 335,433
KA Medical
Assets Acquired
Trade receivables	$ 24
Other receivables	13
Inventories	216
Property and equipment	298
Other long-term assets	147
Goodwill	8,283
Total assets acquired	14,981
Liabilities Assumed
Trade payables	(31)
Accrued expenses	(507)
Total liabilities assumed	(538)
Total net assets acquired	14,443
KA Medical | Developed technology
Assets Acquired
Intangible assets	$ 6,000
Liabilities Assumed
Weighted average useful life	17 years
Fibrovein Holdings Limited
Assets Acquired
Trade receivables		$ 277
Inventories		843
Prepaid expenses and other assets		49
Goodwill		4,975
Total assets acquired		16,572
Liabilities Assumed
Trade payables		(53)
Accrued expenses		(29)
Deferred income tax liabilities		(1,890)
Total liabilities assumed		(1,972)
Total net assets acquired		$ 14,600
Weighted average useful life		12 years
Fibrovein Holdings Limited | Developed technology
Assets Acquired
Intangible assets		$ 10,428
Liabilities Assumed
Weighted average useful life		12 years
Brightwater
Assets Acquired
Trade receivables			$ 55
Inventories			349
Property and equipment			409
Other long-term assets			30
Goodwill			17,607
Total assets acquired			50,743
Liabilities Assumed
Trade payables			(58)
Accrued expenses			(261)
Other long-term liabilities			(1,522)
Deferred income tax liabilities			(4,263)
Total liabilities assumed			(6,104)
Total net assets acquired			$ 44,639
Weighted average useful life			12 years 10 months 24 days
Brightwater | Developed technology
Assets Acquired
Intangible assets			$ 31,960
Liabilities Assumed
Weighted average useful life			13 years
Brightwater | Customer Lists
Assets Acquired
Intangible assets			$ 83
Liabilities Assumed
Weighted average useful life			1 year
Brightwater | Trademarks
Assets Acquired
Intangible assets			$ 250
Liabilities Assumed
Weighted average useful life			5 years
Vascular Insights
Assets Acquired
Inventories				$ 1,353
Goodwill				21,832
Total assets acquired				58,185
Liabilities Assumed
Total net assets acquired				$ 58,185
Weighted average useful life				11 years 9 months 18 days
Net sales related to acquisition								5,500	7,500
Vascular Insights | Developed technology
Assets Acquired
Intangible assets				$ 32,750
Liabilities Assumed
Weighted average useful life				12 years
Vascular Insights | Customer Lists
Assets Acquired
Intangible assets				$ 840
Liabilities Assumed
Weighted average useful life				8 years
Vascular Insights | Trademarks
Assets Acquired
Intangible assets				$ 1,410
Liabilities Assumed
Weighted average useful life				9 years
Cianna Medical
Assets Acquired
Trade receivables					$ 6,151
Inventories					5,803
Prepaid expenses and other assets					315
Property and equipment					1,047
Other long-term assets					14
Goodwill					61,379
Total assets acquired					219,629
Liabilities Assumed
Trade payables					(1,497)
Accrued expenses					(2,384)
Other long-term liabilities					(1,527)
Deferred income tax liabilities					(25,940)
Total liabilities assumed					(31,348)
Total net assets acquired					$ 188,281
Weighted average useful life					10 years 8 months 12 days
Net sales related to acquisition								45,300	49,500	6,300
Cianna Medical | Developed technology
Assets Acquired
Intangible assets					$ 134,510
Liabilities Assumed
Weighted average useful life					11 years
Cianna Medical | Customer Lists
Assets Acquired
Intangible assets					$ 3,330
Liabilities Assumed
Weighted average useful life					8 years
Cianna Medical | Trademarks
Assets Acquired
Intangible assets					$ 7,080
Liabilities Assumed
Weighted average useful life					10 years
DirectACCESS Medical, LLC
Assets Acquired
Inventories						$ 971
Goodwill						938
Total assets acquired						7,269
Liabilities Assumed
Total net assets acquired						$ 7,269
Weighted average useful life						9 years 10 months 24 days
DirectACCESS Medical, LLC | Developed technology
Assets Acquired
Intangible assets						$ 4,840
Liabilities Assumed
Weighted average useful life						10 years
DirectACCESS Medical, LLC | Customer Lists
Assets Acquired
Intangible assets						$ 120
Liabilities Assumed
Weighted average useful life						5 years
DirectACCESS Medical, LLC | Trademarks
Assets Acquired
Intangible assets						$ 400
Liabilities Assumed
Weighted average useful life						10 years
Becton, Dickinson and Company
Assets Acquired
Inventories							$ 5,804
Property and equipment							748
Goodwill							9,728
Total assets acquired							101,880
Liabilities Assumed
Total net assets acquired							$ 101,880
Weighted average useful life							8 years
Net sales related to acquisition								$ 42,600	$ 46,800	$ 42,100
Becton, Dickinson and Company | Developed technology
Assets Acquired
Intangible assets							$ 74,000
Liabilities Assumed
Weighted average useful life							8 years
Becton, Dickinson and Company | Customer Lists
Assets Acquired
Intangible assets							$ 4,200
Liabilities Assumed
Weighted average useful life							7 years
Becton, Dickinson and Company | Trademarks
Assets Acquired
Intangible assets							$ 4,900
Liabilities Assumed
Weighted average useful life							9 years
Becton, Dickinson and Company | In-process technology
Assets Acquired
Intangible assets							$ 2,500