| Summary of Finite-Lived and Indefinite-Lived Intangible Assets [Table Text Block] |
Information regarding our intangible assets is as follows: | | | | | | | | | | | | | | | | | | | | 2020 | | 2019 | March 31, | | Gross Carrying Amount | | Accumulated Amortization | | Gross Carrying Amount | | Accumulated Amortization | Customer relationships | | $ | 614,162 |
| | $ | 227,581 |
| | $ | 623,774 |
| | $ | 189,752 |
| Non-compete agreements | | 4,646 |
| | 4,012 |
| | 4,693 |
| | 3,945 |
| Patents and technology | | 259,101 |
| | 145,457 |
| | 226,520 |
| | 126,149 |
| Trademarks and tradenames | | 62,543 |
| | 39,942 |
| | 63,570 |
| | 38,850 |
| Supplier relationships | | 54,800 |
| | 12,787 |
| | 54,800 |
| | 10,047 |
| Total | | $ | 995,252 |
| | $ | 429,779 |
| | $ | 973,357 |
| | $ | 368,743 |
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| Schedule of Goodwill [Table Text Block] |
Changes to the carrying amount of goodwill for the years ended March 31, 2020 and 2019 were as follows: | | | | | | | | | | | | | | | | | | | | | | | | Healthcare Products Segment | | Healthcare Specialty Services Segment | | Life Sciences Segment | | Applied Sterilization Technologies Segment | | Total | Balance at March 31, 2018 | | 404,674 |
| | 388,025 |
| | 148,816 |
| | 1,492,269 |
| | 2,433,784 |
| Goodwill acquired or allocated | | (1,202 | ) | | (907 | ) | | — |
| | 5,341 |
| | 3,232 |
| Foreign currency translation adjustments | | (6,188 | ) | | (12,208 | ) | | (1,021 | ) | | (94,671 | ) | | (114,088 | ) | Balance at March 31, 2019 | | $ | 397,284 |
| | $ | 374,910 |
| | $ | 147,795 |
| | $ | 1,402,939 |
| | $ | 2,322,928 |
| Goodwill acquired or allocated | | 65,222 |
| | 1,364 |
| | — |
| | 7,945 |
| | 74,531 |
| Divestitures | | — |
| | (199 | ) | | — |
| | — |
| | (199 | ) | Foreign currency translation adjustments | | (3,499 | ) | | (7,816 | ) | | 762 |
| | (30,622 | ) | | (41,175 | ) | Balance at March 31, 2020 | | $ | 459,007 |
| | $ | 368,259 |
| | $ | 148,557 |
| | $ | 1,380,262 |
| | $ | 2,356,085 |
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| Schedule of Expected Amortization Expense |
Based upon the current amount of intangible assets subject to amortization, the amortization expense for each of the five succeeding fiscal years is estimated to be as follows: | | | | | | | | | | | | | | | | | | | | | | | | 2021 | | 2022 | | 2023 | | 2024 | | 2025 | Estimated amortization expense | | $ | 71,049 |
| | $ | 68,393 |
| | $ | 62,808 |
| | $ | 56,549 |
| | $ | 54,772 |
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