CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Revenue	$ 1,190,533	$ 1,258,777	$ 2,395,929	$ 2,526,831
Operating expenses:
Network access expenses	107,114	115,433	216,512	231,002
Other operating expenses	534,015	539,911	1,075,514	1,091,494
Depreciation and amortization	297,849	307,047	601,524	664,347
Integration costs	0	28,602	0	63,746
Total operating expenses	938,978	990,993	1,893,550	2,050,589
Gain on sale of Mohave partnership interest	14,601	0	14,601	0
Operating income	266,156	267,784	516,980	476,242
Investment income	231	9,991	3,293	12,094
Losses on early extinguishment of debt	(159,780)	(70,818)	(159,780)	(70,818)
Other income (loss), net	2,725	(1,187)	4,317	2,298
Interest expense	166,547	172,054	337,967	336,916
Income (loss) before income taxes	(57,215)	33,716	26,843	82,900
Income tax expense (benefit)	(18,755)	11,717	14,520	30,411
Net income (loss)	(38,460)	21,999	12,323	52,489
Less: Income attributable to the noncontrolling interest in a partnership	0	4,010	2,643	7,732
Net income (loss) attributable to common shareholders of Frontier	$ (38,460)	$ 17,989	$ 9,680	$ 44,757
Basic and diluted net income (loss) per common share attributable to common shareholders of Frontier (in dollars per share)	$ (0.04)	$ 0.02	$ 0.01	$ 0.04