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Accounting Policies - Additional Information (Detail) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 30, 2017 | Dec. 31, 2020 USD ($) Claim State Surgery_Center Endoscopy_Center Hospital | Dec. 31, 2020 USD ($) Claim State Surgery_Center Endoscopy_Center Hospital | Dec. 31, 2019 USD ($) Claim | Dec. 31, 2018 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Number of owned and operated hospitals | Hospital |  | 185 | 185 |  |
Number of freestanding surgery centers | Surgery_Center |  | 121 | 121 |  |
Number of freestanding endoscopy centers | Endoscopy_Center |  | 21 | 21 |  |
Number of facilities locations | State |  | 20 | 20 |  |
General and administrative expense |  |  | $ 416,000 | $ 370,000 | $ 344,000
Adjustments to estimated reimbursement filed during respective year |  |  | 70,000 | 51,000 | 29,000
Adjustments to estimated reimbursement filed during previous years |  |  | (5,000) | 13,000 | 51,000
Estimated implicit price concessions recorded as reductions to revenues and accounts receivable |  |  | 6,108,000 | 6,953,000 |
Charity care amount |  |  | 13,763,000 | 13,260,000 | 8,611,000
Estimated costs of charity care |  |  | 1,652 | 1,591 | $ 1,068,000
Outstanding checks unpresented for payment |  | $ 495,000 | $ 495,000 | $ 486,000 |
Days revenues in accounts receivable |  |  | 45 days | 50 days | 51 days
Depreciation expense |  |  | $ 2,693,000 | $ 2,579,000 | $ 2,262,000
Goodwill impairments |  |  | 0 | 0 | 0
Goodwill acquired during period |  |  | 279,000 | 332,000 |
Intangible assets decreased |  |  | 26,000 | 12,000 |
Gross carrying amount of intangible assets |  |  | 249,000 | 184,000 |
Accumulated amortization of intangible assets |  | 149,000 | 149,000 | 123,000 |
Gross carrying amount of indefinite-lived intangible assets |  | 269,000 | 269,000 | 269,000 |
Deferred loan costs |  | 411,000 | 411,000 | 413,000 |
Deferred loan costs, accumulated amortization |  | 175,000 | 175,000 | 174,000 |
Amortization of debt issuance costs |  |  | 30,000 | 30,000 | 31,000
Reserves for professional liability risks |  | 1,963,000 | 1,963,000 | 1,827,000 |
Current portion of professional liability risks reserves |  | $ 477,000 | 477,000 | 457,000 |
Provisions for losses related to professional liability risks |  |  | 435,000 | 497,000 | 447,000
Decrease in provision for professional liability risks |  |  | $ 112,000 | $ 50,000 | 70,000
Reserves for professional liability risks cover individual claims | Claim |  | 2,300 | 2,300 | 2,300 |
Net payments of professional and general liability claims |  |  | $ 292,000 | $ 408,000 |
Self-insured retention amount per occurrence |  |  |  |  | 15,000
Maximum amount losses per occurrence |  |  |  |  | $ 50,000
Reinsurance for professional liability risks retention minimum level of amount per occurrence |  |  | 25,000 |  |
Reinsurance for professional liability risks retention level of amount per occurrence |  |  | 35,000 |  |
Amounts receivable under reinsurance contracts recorded in other assets |  | $ 31,000 | 31,000 | 37,000 |
Amounts receivable under reinsurance contracts recorded in other current assets |  | 8,000 | 8,000 | 9,000 |
Government stimulus refund liability |  | 83,000 | 83,000 |  |
Increase decrease in accounts receivable |  |  | $ 329,000 |  |
Percentage increase in fourth quarter revenues per day |  |  | 5.70% |  |
CARES Act Provider Relief Fund [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Accelerated Medicare payments received |  |  | $ 4,400,000 |  |
General and targeted distributions recived |  |  | 1,800,000 |  |
Deferred social security taxes |  | 688,000 | 688,000 |  |
Employee retention payroll tax credits |  |  | 60,000 |  |
Repayments of provider relief funds |  | 6,100,000 |  |  |
Government stimulus refund liability |  | $ 83,000 | 83,000 |  |
Foreign Currency Translation And Other [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Goodwill increase (decrease) |  |  | $ 9,000 | $ 4,000 |
Insurance Subsidiary [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Insurance subsidiary ownership percentage |  |  |  | 100.00% |
Inpatient Services [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Performance obligations for inpatient/ outpatient services satisfied period |  |  | Our performance obligations for inpatient services are generally satisfied over periods that average approximately five days |  |
Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Percentage of income of federal poverty level eligible for charity care | 400.00% |  |  |  |
Finite lived intangible asset useful life |  |  | 10 years |  |
Maximum [Member] | Outpatient Services [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Performance obligations for inpatient/ outpatient services satisfied period |  |  | Our performance obligations for outpatient services are generally satisfied over a period of less than one day |  |
Maximum [Member] | Building and Improvements [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives in years |  |  | 40 years |  |
Maximum [Member] | Equipment [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives in years |  |  | 10 years |  |
Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Finite lived intangible asset useful life |  |  | 3 years |  |
Minimum [Member] | Building and Improvements [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives in years |  |  | 10 years |  |
Minimum [Member] | Equipment [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives in years |  |  | 4 years |  |

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Data Type: | na
Balance Type: |
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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |