Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (69,745)	$ (22,556)
Adjustments to reconcile net loss to net cash provided by operating activities
Depreciation and amortization	20,883	24,959
Amortization of debt discount and issuance costs	1,011	339
Share-based compensation	3,179	3,223
(Gain) loss on derivative financial instruments	(2,635)	6,369
Impairment loss	24,011	16,173
Deferred income taxes	(2,034)	2,500
Loss on sale of assets	273	0
Amortization of key money	(234)	(206)
Bad debt expense	(9)	(542)	$ 3,100
Other	199	71
Changes in assets and liabilities:
Trade and other receivables, net	(1,350)	9,880
Accounts receivable from related parties	244	(35)
Inventories	(356)	(545)
Prepayments and other assets	4,636	946
Trade and other payables	(2,940)	(13,596)
Payables to related parties	(1,345)	2,171
Income tax payable	(190)	(976)
Other liabilities	(160)	(1,450)
Net cash (used in) provided by operating activities	(26,562)	26,725
INVESTING ACTIVITIES
Capital expenditures	(4,561)	(6,434)
Receipt of key money	0	8,500	8,500
Purchase of intangibles	(29)	(56)
Proceeds from the sale of assets, net	34,212	3
Net cash provided by investing activities	29,622	2,013
FINANCING ACTIVITIES
Proceeds from ordinary shares, net of issuance costs	137,716	0
Repayments of debt	(2,525)	(2,525)
Proceeds from borrowings on revolving credit facility	0	40,000
Repayments of borrowings on revolving credit facility	(84,667)	(15,000)
Repurchase of ordinary shares	0	(2,500)
Repurchase of ordinary shares for tax withholdings	(55)	(34)
Principal payments on lease obligations	(23)	0
Net cash provided by financing activities	50,446	19,941
INCREASE IN CASH AND CASH EQUIVALENTS	53,506	48,679
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF THE PERIOD	172,860	20,931	20,931
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF THE PERIOD	226,366	69,610	172,860
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents				$ 200,427	$ 146,919	$ 69,610
Restricted cash				25,939	25,941	0
TOTAL CASH, CASH EQUIVALENTS AND RESTRICTED CASH	226,366	69,610	$ 20,931	$ 226,366	$ 172,860	$ 69,610
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest	18,798	14,034
Cash paid for income taxes, net	197	2,000
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Capital expenditures incurred but not yet paid	720	4,083
Intangible assets capitalized but not yet paid	59	236
Par value of vested restricted share awards	$ 87	$ 55