Contract Receivable (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($) bed	Dec. 31, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract receivable	$ 367,071	$ 396,647
Ravenhall
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract receivable	$ 367,000
Loan issued, interest rate	8.97%
Department of Justice, State of Victoria \| Facility Constructions and Design
Accounts, Notes, Loans and Financing Receivable [Line Items]
Design Capacity \| bed	1,300
Facility operation contract term	25 years

Yield on the receivable, on which interest has been imputed, as calculated from its issuance value or purchase price. The calculated effective interest rate considers factors such as the issued face value or price paid for the receivable, the time period between payments, and the time until maturity [full receipt] of the receivable.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration