Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Consolidated Statements Of Operations [Abstract]
Revenue	$ 1,147,265	$ 1,190,533	$ 2,301,311	$ 2,395,929
Operating expenses:
Network access expenses	106,224	107,114	213,316	216,512
Other operating expenses	523,385	534,015	1,052,311	1,075,514
Depreciation and amortization	273,463	297,849	554,870	601,524
Acquisition and integration costs	19,851		30,447
Total operating expenses	922,923	938,978	1,850,944	1,893,550
Gain on sale of Mohave partnership interest		14,601		14,601
Operating income	224,342	266,156	450,367	516,980
Investment and other income (expense), net	(17)	2,956	1,378	7,610
Losses on early extinguishment of debt		159,780		159,780
Interest expense	167,611	166,547	338,568	337,967
Income (loss) before income taxes	56,714	(57,215)	113,177	26,843
Income tax expense (benefit)	19,034	(18,755)	36,223	14,520
Net income (loss)	37,680	(38,460)	76,954	12,323
Less: Income attributable to the noncontrolling interest in a partnership				2,643
Net income (loss) attributable to common shareholders of Frontier	$ 37,680	$ (38,460)	$ 76,954	$ 9,680
Basic and diluted net income (loss) per common share attributable to common shareholders of Frontier (in dollars per share)	$ 0.04	$ (0.04)	$ 0.08	$ 0.01