Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Income Taxes [Line Items]
Minimum Distribution Percentage of Taxable Income to Qualify for Real Estate Investment Trust			90.00%
Income tax expense	$ 8,618,000	$ 369,000	$ 128,668,000	$ 3,183,000
Deferred employer side social security payments					$ 29,600,000
Liabilities for uncertain tax positions	$ 0		0		$ 0
Resulting From Revaluation Of Deferred Tax Liabilities
Income Taxes [Line Items]
Income tax expense			$ 114,200,000
Lansing Correctional Facility
Income Taxes [Line Items]
Income tax expense deferred during construction period				$ 3,100,000
Lease expiration term				20 years
Deferred tax asset revalued upon conversion of TRS to QRS		$ 0		$ 0