Business Segment Information (Tables)

12 Months Ended

Mar. 31, 2019

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

Years Ended March 31,	2019			2018			2017
Revenues:
Healthcare Products	$	1,338,428		$	1,276,054		$	1,266,517
Healthcare Specialty Services	510,057			469,065			539,536
Life Sciences	378,558			361,590			328,866
Applied Sterilization Technologies	555,127			513,287			477,837
Total revenues	$	2,782,170		$	2,619,996		$	2,612,756
Operating income (loss):
Healthcare Products	323,684			294,162			285,177
Healthcare Specialty Services	64,222			58,458			41,019
Life Sciences	132,129			123,889			109,953
Applied Sterilization Technologies	221,828			196,297			176,397
Total reportable segments	741,863			672,806			612,546
Corporate	(184,900		)	(162,999		)	(137,403		)
Total operating income before adjustments	$	556,963		$	509,807		$	475,143
Less: Adjustments
Goodwill impairment loss (1)	—			—			58,356
Amortization of inventory and property "step up" to fair value (2)	2,440			1,599			4,743
Amortization of acquired intangible assets (2)	86,878			67,793			66,398
Acquisition and integration related transaction charges (3)	8,901			16,211			30,082
(Gain) loss on fair value adjustment of acquisition related contingent consideration	(842		)	(593		)	2,569
Net (gain) loss on divestiture of businesses (2)	(1,370		)	14,547			86,574
Impact of the U.S. Tax Cuts and Jobs Act (4)	—			10,264			—
Redomiciliation costs (5)	8,783			—			—
Restructuring charges (6)	40,708			103			215
Total operating income	$	411,465		$	399,883		$	226,206

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area

March 31,	2019		2018
Property, Plant, and Equipment, Net
Ireland	$	41,137	$	38,946
United States	577,113		530,591
Other locations	413,332		440,987
Property, Plant, and Equipment, Net	$	1,031,582	$	1,010,524

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

Years Ended March 31,	2019		2018		2017
Revenues:
Ireland	$	56,784	$	48,246	$	42,733
United States	1,976,814		1,836,414		1,803,457
Other locations	748,572		735,336		766,566
Total Revenues	$	2,782,170	$	2,619,996	$	2,612,756

Revenue from External Customers by Products and Services [Table Text Block]

Years Ended March 31,	2019		2018		2017
Healthcare Products:
Capital equipment	$	568,811	527,402		549,238
Consumables	414,969		412,495		403,747
Service	354,648		336,157		313,532
Total Healthcare Products Revenues	$	1,338,428	$	1,276,054	$	1,266,517
Total Healthcare Specialty Services Revenues	$	510,057	$	469,065	$	539,536
Life Sciences:
Capital equipment	$	102,714	100,555		84,069
Consumables	161,780		150,656		143,143
Service	114,064		110,379		101,654
Total Life Sciences Revenues	$	378,558	$	361,590	$	328,866
Applied Sterilization Technologies Service Revenues	$	555,127	$	513,287	$	477,837
Total Revenues	$	2,782,170	$	2,619,996	$	2,612,756

Other Expense

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

Years Ended March 31,	2019		2018		2017
Capital Expenditures
Healthcare Products and Life Sciences	$	49,688	$	52,767	$	39,253
Healthcare Specialty Services	39,950		16,497		42,408
Applied Sterilization Technologies	100,077		96,193		91,240
Total Capital Expenditures	$	189,715	$	165,457	$	172,901
Depreciation, Depletion, and Amortization
Healthcare Products and Life Sciences (1)	$	81,264	$	52,025	$	46,709
Healthcare Specialty Services	33,392		29,269		56,860
Applied Sterilization Technologies (1)	111,265		97,038		84,573
Total Depreciation, Depletion, and Amortization	$	225,921	$	178,332	$	188,142

Assets

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

March 31,	2019		2018
Assets:
Healthcare Products and Life Sciences	$	1,611,852	$	1,621,156
Healthcare Specialty Services	805,349		813,909
Applied Sterilization Technologies	2,655,870		2,765,269
Total assets	$	5,073,071	$	5,200,334