Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 35,142	$ 15,442
Accounts receivable, net of allowance of $702 in 2013 and $749 in 2012	43,153	47,858
Inventory	9,446	9,430
Prepaid supplies and other	7,306	8,855
Deferred income taxes	19,154	19,154
Aircraft and engines held for sale	2,952	3,360
TOTAL CURRENT ASSETS	117,153	104,099
Property and equipment, net	860,144	818,924
Other assets	19,794	20,462
Intangibles	5,083	5,146
Goodwill	86,980	86,980
TOTAL ASSETS	1,089,154	1,035,611
CURRENT LIABILITIES:
Accounts payable	35,752	36,521
Accrued salaries, wages and benefits	21,524	22,917
Accrued expenses	9,183	8,502
Current portion of debt obligations	23,282	21,265
Unearned revenue	10,580	10,311
TOTAL CURRENT LIABILITIES	100,321	99,516
Long term debt obligations	386,791	343,216
Post-retirement liabilities	179,487	185,097
Other liabilities	61,634	62,104
Deferred income taxes	52,062	46,422
TOTAL LIABILITIES	780,295	736,355
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; 64,585,208 and 64,130,056 shares issued and outstanding in 2013 and 2012, respectively	646	641
Additional paid-in capital	523,069	523,087
Accumulated deficit	(98,685)	(107,185)
Accumulated other comprehensive loss	(116,171)	(117,287)
TOTAL STOCKHOLDERS’ EQUITY	308,859	299,256
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,089,154	$ 1,035,611