Fair Value Measurements - Narrative (Details) - USD ($)
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1 Months Ended |
3 Months Ended |
6 Months Ended |
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Feb. 13, 2020 |
Jun. 30, 2020 |
Apr. 30, 2020 |
Jan. 31, 2020 |
Jul. 31, 2020 |
Oct. 31, 2020 |
Feb. 12, 2020 |
Oct. 01, 2019 |
Jul. 31, 2018 |
Mar. 21, 2018 |
| Convertible notes |
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| Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis |
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| Fair value, convertible debt |
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$ 224,330,000
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$ 226,066,000
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| Hu-Friedy |
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| Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis |
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| Contingent consideration |
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0
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$ 38,371,000
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| Payment to settle portion of contingent consideration |
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$ 35,000
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$ 25,000
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| Decrease in contingent consideration liability |
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$ 17,210,000
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| Contingent consideration, high end of range |
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$ 35,000
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| Hu-Friedy | Dental Holdings |
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| Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis |
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| Contingent consideration, high end of range |
$ 35,000
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| Repurchase of shares (in dollars per share) |
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$ 64.51
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| Shares repurchased (in shares) |
438,359
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| Payment to settle portion of contingent consideration |
$ 6,721,000
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| Consideration for the repurchase |
$ 28,279,000
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| Aexis |
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| Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis |
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| Contingent consideration |
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$ 1,292,000
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| Payment to settle portion of contingent consideration |
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$ 1,691,000
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| Contingent consideration, high end of range |
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$ 1,850,000
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| Contingent consideration, low end of range |
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$ 0
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