UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - Supplemental - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Supplemental disclosures:
Cash and cash equivalents	$ 147,711	$ 281,691
Restricted cash (Note 1)	1,719	107
Total cash, cash equivalents and restricted cash shown in the statements of cash flows	149,430	281,798
Cash paid for income taxes, net of refunds	7,503	5,016
Non-cash transactions
Property and equipment purchases in accounts payable and accrued liabilities	$ 1,244	$ 1,211