Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 174,242	$ 30,115
Accounts and notes receivable	96,902	101,046
Less: Allowance for credit losses	(7,035)	(5,251)
Accounts and notes receivable, net	89,867	95,795
Inventory, net	6,598	10,618
Restricted cash	137,353	87,354
Prepaid expenses, deferred costs, and other current assets	53,953	84,639
Total current assets	462,013	308,521
Property and equipment, net of accumulated depreciation of $637,835 and $525,933 as of December 31, 2020 and December 31, 2019, respectively	429,842	461,277
Operating lease assets	60,368	76,548
Intangible assets, net	84,629	113,925
Goodwill	759,102	752,592
Deferred tax assets, net	17,382	13,159
Prepaid expenses, deferred costs, and other noncurrent assets	18,109	37,936
Total assets	1,831,445	1,763,958
Current liabilities:
Current portion of long-term debt	5,000	0
Current portion of other long-term liabilities	64,799	53,144
Accounts payable	39,901	46,478
Accrued liabilities	366,285	334,762
Total current liabilities	475,985	434,384
Long-term liabilities:
Long-term debt	773,177	739,475
Asset retirement obligations	56,973	55,494
Deferred tax liabilities, net	51,484	46,878
Operating lease liabilities	56,683	69,531
Other long-term liabilities	37,727	37,870
Total liabilities	1,452,029	1,383,632
Commitments and contingencies (See Note 19)
Shareholders' equity:
Ordinary shares, $0.01 nominal value; 44,539,433 and 44,676,132 issued and outstanding as of December 31, 2020 and December 31, 2019, respectively	445	447
Additional paid-in capital	343,042	332,109
Accumulated other comprehensive loss, net	(93,731)	(77,887)
Retained earnings	129,693	125,763
Total parent shareholders' equity	379,449	380,432
Noncontrolling interests	(33)	(106)
Total shareholders’ equity	379,416	380,326
Total liabilities and shareholders’ equity	$ 1,831,445	$ 1,763,958