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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes And Tax Related [Line Items]
Percentage of AMT credit refundable			50.00%	50.00%
Number of years in which tax refund is expected to be received			0 years
Expected credits against regular tax and refunds of previously paid taxes			$ 1,720
Income Tax Refundable			1,720	$ 4,760
Tax Year 2018 [Member]
Income Taxes And Tax Related [Line Items]
Income Tax Refundable			$ 1,720
Scenario, Forecast [Member]
Income Taxes And Tax Related [Line Items]
Percentage of AMT credit refundable	100.00%	50.00%
Texas Franchise Tax [Member]
Income Taxes And Tax Related [Line Items]
Tax credit operating carry forward losses allowed after the period, Description			No credit may be carried forward past 2026
Texas Franchise Tax [Member] | 2019 through 2026 [Member]
Income Taxes And Tax Related [Line Items]
Expected credits against regular tax and refunds of previously paid taxes			$ 89

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Income Taxes And Tax Related [Line Items]

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Number of years for tax refund to be received

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Percentage of alternative minimum tax credit refundable.

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The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (3)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(8))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(10))
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