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Accrued Professional Liabilities - Schedule of Accrued Professional Liability (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Payables and Accruals [Abstract] |  |  |
Balance at beginning of year | $ 243,991 | $ 250,187 | $ 202,052
Assumed liabilities through acquisition | 0 | 1,276 | 20,716
Provision (adjustment) for losses related to Current year | 57,495 | 34,483 | 41,291
Provision (adjustment) for losses related to Prior years | 23,191 | 10,299 | 9,983
Total provision for losses | 80,686 | 44,782 | 51,274
Claim payments related to Current year | (3,044) | (555) | (712)
Claim payments related to Prior years | (49,873) | (51,699) | (23,143)
Total payments | (52,917) | (52,254) | (23,855)
Balance at end of year | $ 271,760 | $ 243,991 | $ 250,187

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- Definition Malpractice loss contingency provision for losses. + References No definition available. + Details
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- Definition Provision (adjustment) for losses related to current year. + References No definition available. + Details
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- Definition Amount of the accrued liability on an undiscounted basis for malpractice claims (including general and professional liability) at the end of the accounting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
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- Definition Amount of loss recognized for asserted and unasserted malpractice claims. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 450 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68049836&loc=d3e5870-115623 + Details
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- Definition Amount of increase in asserted and unasserted malpractice claims that were originally recognized in a prior period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 450 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68049836&loc=d3e5870-115623 + Details
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- Definition Amount of costs associated with malpractice claims and insurance premiums incurred during an accounting period, less insurance recoveries and returns of previously paid premiums. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 450 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68049836&loc=d3e5870-115623 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 720 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68060100&loc=d3e8578-115644 + Details
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