Discontinued Operations - Summary of Major Classes of Assets and Liabilities as Reported on Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Carrying amounts of major classes of assets associated with Hospitals and Large Physician Practices included as part of discontinued operations:
Cash and cash equivalents	$ 500,164	$ 132,517	$ 159,556
Assets, Current	828,767	761,342
Total current assets attributable to discontinued operations	20,000	331,955
Carrying amounts of major classes of liabilities associated with Hospitals and Large Physician Practices included as part of discontinued operations:
Total current liabilities attributable to discontinued operations	30,372	329,347
Hospitals and Large Physician Practice [Member]
Carrying amounts of major classes of assets associated with Hospitals and Large Physician Practices included as part of discontinued operations:
Cash and cash equivalents	20,000	55,834
Restricted Cash	0	861
Accounts receivable, net of allowance of $16,584 as of December 31, 2021	0	155,447
Contract assets, net of allowance of $492 as of December 31, 2021	0	61,382
Prepaid expenses and other current assets	0	58,431
Total current assets attributable to discontinued operations	20,000	331,955
Fixed assets, net	0	38,083
Software development costs, net	0	97,416
Intangible assets, net	0	86,240
Goodwill	0	467,871
Deferred taxes, net	0	6,607
Contract assets - long-term, net of allowance of $739 as of December 31, 2021	0	28,623
Right-of-use assets - operating leases	0	50,585
Other assets	0	17,731
Total long-term assets attributable to discontinued operations	0	793,156
Carrying amounts of major classes of liabilities associated with Hospitals and Large Physician Practices included as part of discontinued operations:
Accounts payable	30,372	11,555
Accrued expenses	0	38,007
Accrued compensation and benefits	0	61,167
Deferred revenue	0	205,152
Current operating lease liabilities	0	13,466
Total current liabilities attributable to discontinued operations	30,372	329,347
Deferred revenue long-term	0	2,568
Long-term operating lease liabilities	0	48,068
Other liabilities	0	270
Total long-term liabilities attributable to discontinued operations	$ 0	$ 50,906