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Debt Debt (Details) $ / shares in Units, $ in Thousands |  | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May 15, 2020 USD ($) $ / shares | Sep. 30, 2021 USD ($) $ / shares | Jun. 30, 2021 USD ($) | Jun. 02, 2021 $ / shares shares | Apr. 01, 2021 USD ($) | Mar. 31, 2021 USD ($)
Debt Disclosure [Abstract] |  |  |  |  |  |
Schedule of Debt |  | Indebtedness was as follows:
|  | September 30, 2021 |  | March 31, 2021
Short-term debt |  |  |  |
Term loan, current portion |  | $ | 13,750 |  |  | $ | — |
Delayed draw term loan, current portion |  | 8,125 |  |  | — |
Total short-term debt |  | $ | 21,875 |  |  | $ | — |
Long-term debt |  |  |  |
Private Placement |  | $ | 857,367 |  |  | $ | 860,308 |
Revolving Credit Facility |  | 184,400 |  |  | 247,423 |
Deferred financing costs |  | (27,243) |  |  | (7,191) |
Term loan |  | 411,250 |  |  | 550,000 |
Delayed draw term loan |  | 641,875 |  |  | — |
Senior public notes |  | 1,350,000 |  |  | — |
Financing leases |  | 3,857 |  |  | — |
Total long-term debt |  | $ | 3,421,506 |  |  | $ | 1,650,540 |
Total debt |  | $ | 3,443,381 |  |  | $ | 1,650,540 |
Debt Instrument [Line Items] |  |  |  |  |  |
Private Placement |  | $ 857,367 |  |  |  | $ 860,308
Deferred financing costs |  | 27,243 |  |  |  | 7,191
Credit Agreement |  | 184,400 |  |  |  | 247,423
Total long term debt |  | 3,421,506 |  |  |  | 1,650,540
Finance Lease, Liability |  | 3,857 |  |  |  | 0
Debt, Long-term and Short-term, Combined Amount |  | 3,443,381 |  |  |  | 1,650,540
Short-term Debt |  | 21,875 |  |  |  | 0
Long-Term Debt, Maturity, Year Two |  | 142,875 |  |  |  |
Long-Term Debt, Maturity, Year Three |  | 60,000 |  |  |  |
Long-Term Debt, Maturity, Year Four |  | 165,938 |  |  |  |
Long-Term Debt, Maturity, Year Five |  | 686,900 |  |  |  |
Long-Term Debt, Maturity, after Year Five |  | 2,411,054 |  |  |  |
Long Term Debt Excluding Deferred Financing Fees |  | 3,466,767 |  |  |  |
Term loan, current portion |  | 13,750 |  |  |  | 0
Term Loan |  | 411,250 |  |  |  | 550,000
Delayed Draw Term Loan |  | 641,875 | $ 650,000 |  |  | 0
Delayed draw term loan, current portion |  | $ 8,125 |  |  |  | 0
Business Acquisition, Shares Received Per Ordinary Share | shares |  |  |  | 0.33787 |  |
Common Stock, Par or Stated Value Per Share | $ / shares |  | $ 0.001 |  | $ 0.001 |  |
Debt Instrument, Convertible, Units of Property Reference |  |  |  | 25.0843 |  |
Debt Instrument, Convertible, Parent Shares | shares |  |  |  | 8.4752 |  |
Debt Instrument, Convertible, Cash Per One Thousand Dollars Ratio |  |  |  | 424.68 |  |
Debt Instrument, Convertible, Increase in Conversion Rate, Shares | shares |  |  |  | 0.9931 |  |
Debt Instrument, Convertible, Stock Price | $ / shares |  |  |  | $ 81.3520 |  |
Consideration related to equity component of convertible debt |  | $ 175,555 |  |  |  |
Convertible debt premium liability |  | 203,361 |  |  |  |
Cantel Acquisition Assumed Debt Obligations |  | 721,284 |  |  |  |
Cantel Convertible Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Ratio | 24.0912 |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.25% |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares | $ 41.51 |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares | $ 41.51 |  |  |  |  |
Cantel Medical Corp. |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Business Acquisition, Share Price | $ / shares |  |  |  | $ 16.93 |  |
Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Face Amount |  | 1,350,000 |  |  | $ 1,350,000 | $ 0
Long-term Debt, Cash Settlement Value |  | 371,361 |  |  |  |
Senior Notes | 2031 Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 675,000 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 2.70% |
Senior Notes | 2051 Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 675,000 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 3.75% |
Convertible Debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Face Amount | $ 168,000 | $ 168,000 |  |  |  |

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