Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 211,797	$ 44,608
Accounts receivable, net	199,127	116,043
Inventories	36,953	28,779
Prepaid expenses and other current assets	60,508	52,499
Total current assets	508,385	241,929
Property and equipment, net:
Property and equipment, at cost	2,322,291	2,204,678
Accumulated depreciation	(1,032,914)	(950,996)
Total property and equipment, net	1,289,377	1,253,682
Other assets:
Right-of-use operating leases, net	202,935
Debt issuance costs	3,836	1,793
Deposits and other assets	10,740	11,277
Goodwill	659,618	659,618
Intangible assets, net of accumulated amortization of $22,623 and $21,133 as of September 30, 2019 and December 31, 2018, respectively	345,812	349,029
Total other assets	1,222,941	1,021,717
Total assets	3,020,703	2,517,328
Current liabilities:
Accounts payable	51,428	32,905
Accrued compensation, payroll taxes and benefits	23,994	30,468
Accrued insurance reserves	37,108	39,183
Accrued interest payable	20,819	30,697
Other accrued liabilities	61,038	45,880
Deferred revenue	197,674	146,227
Short-term borrowings		43,000
Current portion of long-term debt	8,000
Short-term operating lease liabilities	10,585
Total current liabilities	410,646	368,360
Noncurrent liabilities:
Long-term debt	2,268,704	2,063,512
Long-term operating lease liabilities	185,365
Other long-term liabilities	22,133	29,280
Deferred income taxes	223,656	173,998
Total noncurrent liabilities	2,699,858	2,266,790
Total liabilities	3,110,504	2,635,150
Redeemable noncontrolling interests	545,386	525,271
Stockholders' deficit:
Preferred stock, $1.00 par value
Common stock, $0.025 par value, 140,000,000 shares authorized; 84,516,567 and 83,962,182 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively	2,113	2,099
Capital in excess of par value	1,066,312	1,037,640
Accumulated deficit	(1,628,394)	(1,611,334)
Accumulated other comprehensive loss, net of tax	(75,218)	(71,498)
Total stockholders' deficit	(635,187)	(643,093)
Total liabilities and stockholders' deficit	$ 3,020,703	$ 2,517,328