Discontinued Operations - Summary of Major Classes of Assets and Liabilities as Reported on Consolidated Balance Sheets (Parenthetical) (Detail) - Hospital And Large Physician Practices [Member] $ in Thousands	Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group including discontinued operation accounts receivable, allowance	$ 16,584
Disposal group including discontinued operation contract asset, allowance current	492
Disposal group including discontinued operation contract asset - long term, allowance	$ 739