Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 27,102	$ 31,699
Accounts receivable, net of allowance of $698 in 2014 and $717 in 2013	50,827	52,247
Inventory	10,608	9,050
Prepaid supplies and other	12,754	9,730
Deferred income taxes	13,957	13,957
Aircraft and engines held for sale	2,487	2,995
TOTAL CURRENT ASSETS	117,735	119,678
Property and equipment, net	817,441	838,172
Other assets	36,761	21,143
Pension assets, net of obligations	16,887	14,855
Intangibles	4,826	4,896
Goodwill	34,395	34,395
TOTAL ASSETS	1,028,045	1,033,139
CURRENT LIABILITIES:
Accounts payable	30,361	34,818
Accrued salaries, wages and benefits	23,400	23,163
Accrued expenses	9,497	9,695
Current portion of debt obligations	23,873	23,721
Unearned revenue	8,887	8,733
TOTAL CURRENT LIABILITIES	96,018	100,130
Long term debt	350,718	360,794
Post-retirement obligations	30,207	30,638
Other liabilities	62,243	62,740
Deferred income taxes	113,273	109,869
TOTAL LIABILITIES	652,459	664,171
Commitments and contingencies (Note G)
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; 75,000,000 shares authorized; 64,850,537 and 64,618,305 shares issued and outstanding in 2014 and 2013, respectively	649	646
Additional paid-in capital	525,347	524,953
Accumulated deficit	(120,080)	(126,813)
Accumulated other comprehensive loss	(30,330)	(29,818)
TOTAL STOCKHOLDERS’ EQUITY	375,586	368,968
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,028,045	$ 1,033,139