Block 21 Transaction - Purchase price allocation (Details) - Block 21 [Member] $ in Thousands	May 31, 2022 USD ($)
Business Acquisition [Line Items]
Property and equipment	$ 237,159
Cash and cash equivalents - unrestricted	8,493
Cash and cash equivalents - restricted	12,450
Trade receivables	1,405
Prepaid expenses and other assets	1,085
Intangible assets	1,723
Total assets acquired	262,315
Debt (Note 9)	(132,531)
Accounts payable and accrued liabilities	(14,774)
Other liabilities	(75)
Total liabilities assumed	(147,380)
Net assets acquired	$ 114,935