Goodwill and Intangible Assets Narrative (Details) - USD ($)
$ in Thousands |
9 Months Ended |
12 Months Ended |
Dec. 31, 2018 |
Mar. 31, 2020 |
Mar. 31, 2019 |
Mar. 31, 2018 |
| Goodwill [Line Items] |
|
|
|
|
| Indefinite-lived Intangible Assets (Excluding Goodwill) |
|
$ 14,250
|
$ 13,000
|
|
| Asset Impairment Charges |
$ 16,249
|
|
|
|
| Goodwill |
|
2,356,085
|
2,322,928
|
$ 2,433,784
|
| Finite-Lived Intangible Assets, Amortization Expense |
|
74,528
|
98,747
|
70,195
|
| Finite-Lived Intangible Assets, Gross |
|
995,252
|
973,357
|
|
| Finite-Lived Intangible Assets, Accumulated Amortization |
|
429,779
|
368,743
|
|
| goodwill acquired or allocated member |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill, Acquired During Period |
|
74,531
|
3,232
|
|
| Healthcare Specialty Services [Member] |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill |
|
368,259
|
374,910
|
388,025
|
| Healthcare Specialty Services [Member] | goodwill acquired or allocated member |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill, Acquired During Period |
|
1,364
|
(907)
|
|
| Life Science Member [Member] |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill |
|
148,557
|
147,795
|
148,816
|
| Life Science Member [Member] | goodwill acquired or allocated member |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill, Acquired During Period |
|
0
|
0
|
|
| Applied Sterilization Technologies [Member] |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill |
|
1,380,262
|
1,402,939
|
1,492,269
|
| Applied Sterilization Technologies [Member] | goodwill acquired or allocated member |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill, Acquired During Period |
|
7,945
|
5,341
|
|
| Healthcare Products [Member] |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill |
|
459,007
|
397,284
|
$ 404,674
|
| Healthcare Products [Member] | goodwill acquired or allocated member |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Goodwill, Acquired During Period |
|
65,222
|
(1,202)
|
|
| Trademarks and Trade Names [Member] |
|
|
|
|
| Goodwill [Line Items] |
|
|
|
|
| Finite-Lived Intangible Assets, Gross |
|
62,543
|
63,570
|
|
| Finite-Lived Intangible Assets, Accumulated Amortization |
|
$ 39,942
|
$ 38,850
|
|