Consolidated Balance Sheets - USD ($)	Sep. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash, cash equivalents and restricted cash	$ 54,486,000	$ 69,496,000
Accounts receivable, net of allowance of $989 in 2022 and $742 in 2021	250,548,000	205,399,000
Inventory	55,322,000	49,204,000
Prepaid supplies and other	28,281,000	28,742,000
TOTAL CURRENT ASSETS	388,637,000	352,841,000
Property and equipment, net	2,339,278,000	2,129,934,000
Lease incentive	85,472,000	102,913,000
Other assets	154,841,000	113,878,000
Goodwill and acquired intangibles	495,195,000	505,125,000
Operating lease assets	61,742,000	62,644,000
TOTAL ASSETS	3,525,165,000	3,267,335,000
CURRENT LIABILITIES:
Accounts payable	186,460,000	174,237,000
Accrued salaries, wages and benefits	60,170,000	56,652,000
Accrued expenses	12,910,000	14,950,000
Current portion of debt obligations	637,000	628,000
Current portion of lease obligations	21,879,000	18,783,000
Unearned revenue and grants	37,289,000	47,381,000
TOTAL CURRENT LIABILITIES	319,345,000	312,631,000
Long term debt	1,369,006,000	1,298,735,000
Post-retirement obligations	20,140,000	21,337,000
Long term lease obligations	40,581,000	44,387,000
Other liabilities	56,810,000	49,662,000
Deferred Income Tax Liabilities, Net	253,036,000	217,291,000
Stock Warrants	715,000	915,000
TOTAL LIABILITIES	2,059,633,000	1,944,958,000
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; 74,366,636 and 74,142,183 shares issued and outstanding in 2022 and 2021, respectively	744,000	741,000
Additional paid-in capital	1,039,354,000	1,074,286,000
Retained earnings	486,231,000	309,430,000
Accumulated other comprehensive loss	(60,797,000)	(62,080,000)
TOTAL STOCKHOLDERS’ EQUITY	1,465,532,000	1,322,377,000
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	3,525,165,000	$ 3,267,335,000
Amazon Warrant C [Member] [Member]
CURRENT LIABILITIES:
Stock Warrants	$ (700,000)