CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 111,918	$ 68,772
Accounts receivable - net of allowance for credit losses of $217 and $1,497, respectively	128,148	84,244
Inventories	3,949	2,729
Prepaid expenses	6,752	11,199
Other current assets	297	782
Total current assets	251,064	167,726
PROPERTY AND EQUIPMENT - Net of accumulated depreciation	808,494	880,477
OPERATING LEASE RIGHT-OF-USE ASSETS	409	709
OTHER NONCURRENT ASSETS:
Other noncurrent assets	1,269	1,827
Total other noncurrent assets	1,269	1,827
TOTAL ASSETS	1,061,236	1,050,739
CURRENT LIABILITIES:
Accounts payable	152,649	79,153
Accrued and other current liabilities	20,767	24,676
Operating lease liabilities	369	334
Total current liabilities	173,785	104,163
DEFERRED INCOME TAXES	61,052	75,340
NONCURRENT OPERATING LEASE LIABILITIES	97	465
Total liabilities	234,934	179,968
COMMITMENTS AND CONTINGENCIES (Note 15)
SHAREHOLDERS’ EQUITY:
Preferred stock, $0.001 par value, 30,000,000 shares authorized, none issued, respectively	0	0
Common stock, $0.001 par value, 200,000,000 shares authorized, 103,437,177 and 100,912,777 shares issued, respectively	103	101
Additional paid-in capital	844,829	835,115
(Accumulated deficit) Retained earnings	(18,630)	35,555
Total shareholders’ equity	826,302	870,771
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 1,061,236	$ 1,050,739