Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 33,452	$ 33,178
Accounts receivable, net	72,558	38,400
Inventories	39,769	30,887
Prepaid expenses and other current assets	17,317	16,310
Total current assets	163,096	118,775
Property and equipment, at cost	3,042,910	2,952,074
Accumulated depreciation	(1,343,446)	(1,276,833)
Property and equipment, net	1,699,464	1,675,241
Goodwill, net	66,278	66,278
Trade names/trademarks, net	159,071	159,802
Other intangible assets, net	14,476	14,896
Deferred tax assets, net	40,955	32,820
Other assets	20,154	17,970
Total assets	2,163,494	2,085,782
Current liabilities:
Accounts payable and accrued expenses	131,149	100,573
Current maturities of long-term debt	23,707	38,707
Accrued salaries, wages and benefits	22,337	14,554
Deferred revenue	157,986	79,554
Dividends payable	124	470
Other accrued liabilities	32,701	19,612
Total current liabilities	368,004	253,470
Long-term debt, net of debt issuance costs of $7,639 and $9,045 as of June 30, 2018 and December 31, 2017, respectively	1,494,066	1,503,609
Other liabilities	31,743	41,237
Total liabilities	1,893,813	1,798,316
Commitments and contingencies (Note 10)
Stockholders’ Equity:
Preferred stock, $0.01 par value—authorized, 100,000,000 shares, no shares issued or outstanding at June 30, 2018 and December 31, 2017
Common stock, $0.01 par value—authorized, 1,000,000,000 shares; 93,060,175 and 92,637,403 shares issued at June 30, 2018 and December 31, 2017, respectively	931	926
Additional paid-in capital	653,714	641,324
Accumulated other comprehensive income (loss)	3,797	(5,076)
Accumulated deficit	(233,890)	(194,837)
Treasury stock, at cost (6,519,773 shares at June 30, 2018 and December 31, 2017)	(154,871)	(154,871)
Total stockholders’ equity	269,681	287,466
Total liabilities and stockholders’ equity	$ 2,163,494	$ 2,085,782