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Revenue - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Revenue and Concentration Risk [Line Items]
Advance Medicare payments to provide relief from economic impacts of COVID-19					$ 29,700,000
Revenue increase (decrease) due to changes in estimated transaction price due to contractual adjustments	$ 11,700,000		$ 19,900,000
Capitalized costs incurred to obtain or fulfill contract	$ 0		$ 0
Performance obligation estimate
Revenue and Concentration Risk [Line Items]
Change in earnings per share (dollars per share)	$ 0.11		$ 0.19
Government contracts concentration risk | Medicare | Revenues
Revenue and Concentration Risk [Line Items]
Concentration risk (percent)	13.00%	16.00%	13.00%	18.00%

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CARES Act of 2020 Medicare payment amount.

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Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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