Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash, cash equivalents and restricted cash	$ 46,833	$ 59,322
Accounts receivable, net of allowance of $2,793 in 2019 and $1,444 in 2018	135,907	147,755
Inventory	32,776	33,536
Prepaid supplies and other	18,018	18,608
TOTAL CURRENT ASSETS	233,534	259,221
Property and equipment, net	1,707,332	1,555,005
Lease incentive	151,271	63,780
Other assets	67,711	57,220
Goodwill and acquired intangibles	530,512	535,359
Operating lease assets	54,473	0
Intangibles	134,538	144,614
Goodwill	395,974	390,745
TOTAL ASSETS	2,744,833	2,470,585
CURRENT LIABILITIES:
Accounts payable	132,508	109,843
Accrued salaries, wages and benefits	50,080	50,932
Accrued expenses	15,656	19,623
Current portion of debt obligations	43,451	29,654
Current portion of lease obligations	14,794	0
Unearned revenue	20,153	19,082
TOTAL CURRENT LIABILITIES	276,642	229,134
Long term debt	1,408,086	1,371,598
Post-retirement obligations	54,066	64,485
Long term lease obligations	38,541	0
Other liabilities	53,410	51,905
Stock Warrants	308,074	203,782
Deferred income taxes	125,018	113,243
TOTAL LIABILITIES	2,263,837	2,034,147
Commitments and contingencies (Note H)
STOCKHOLDERS’ EQUITY:
Preferred stock, 20,000,000 shares authorized, including 75,000 Series A Junior Participating Preferred Stock	0	0
Common stock, par value $0.01 per share; 150,000,000 shares authorized; 59,368,570 and 59,134,173 shares issued and outstanding in 2019 and 2018, respectively	594	591
Additional paid-in capital	474,915	471,158
Retained earnings	86,085	56,051
Accumulated other comprehensive loss	(80,598)	(91,362)
TOTAL STOCKHOLDERS’ EQUITY	480,996	436,438
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,744,833	$ 2,470,585