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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, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Payables and Accruals [Abstract] |  |  |
Balance at beginning of year | $ 202,527 | $ 168,369 | $ 158,691
Assumed liabilities through acquisition |  | 35,968 |
Provision (adjustment) for losses related to Current year | 38,129 | 39,204 | 39,386
Provision (adjustment) for losses related to Prior years | (25,428) | (25,797) | (16,125)
Total provision for losses | 12,701 | 13,407 | 23,261
Claim payments related to Current year | (766) | (1,382) | (293)
Claim payments related to Prior years | (12,410) | (13,835) | (13,290)
Total payments | (13,176) | (15,217) | (13,583)
Balance at end of year | $ 202,052 | $ 202,527 | $ 168,369

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Definition Amount of loss recognized for asserted and unasserted malpractice claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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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