Guarantor Financial Information (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Condensed consolidating financial statements
Total revenue	$ 119,283	$ 111,165	$ 373,783	$ 316,948
Costs and expenses	73,718	77,247	258,900	328,910
Operating income (loss)	45,565	33,918	114,883	(11,962)
Other income (expense)	(2,574)	(17,066)	(39,416)	(38,018)
Equity in earnings of subsidiaries	0	0	0	0
Income tax (expense) benefit	(15,562)	(5,901)	(27,319)	18,693
NET INCOME (LOSS)	27,429	10,951	48,148	(31,287)
Issuer
Condensed consolidating financial statements
Total revenue	83,100	71,943	257,182	209,313
Costs and expenses	49,718	51,320	179,479	243,005
Operating income (loss)	33,382	20,623	77,703	(33,692)
Other income (expense)	(3,258)	(17,372)	(41,249)	(37,962)
Equity in earnings of subsidiaries	8,364	8,841	25,358	14,088
Income tax (expense) benefit	(11,059)	(1,141)	(13,664)	26,279
NET INCOME (LOSS)	27,429	10,951	48,148	(31,287)
Guarantor Subsidiaries
Condensed consolidating financial statements
Total revenue	35,199	38,470	113,814	106,173
Costs and expenses	23,340	25,598	77,682	85,218
Operating income (loss)	11,859	12,872	36,132	20,955
Other income (expense)	240	(13)	719	(483)
Equity in earnings of subsidiaries	0	0	0	0
Income tax (expense) benefit	(4,234)	(4,500)	(12,898)	(7,165)
NET INCOME (LOSS)	7,865	8,359	23,953	13,307
Non-Guarantor Subsidiaries
Condensed consolidating financial statements
Total revenue	984	752	2,787	1,462
Costs and expenses	660	329	1,739	687
Operating income (loss)	324	423	1,048	775
Other income (expense)	444	319	1,114	427
Equity in earnings of subsidiaries	0	0	0	0
Income tax (expense) benefit	(269)	(260)	(757)	(421)
NET INCOME (LOSS)	499	482	1,405	781
Adjustments/Eliminations
Condensed consolidating financial statements
Total revenue	0	0	0	0
Costs and expenses	0	0	0	0
Operating income (loss)	0	0	0	0
Other income (expense)	0	0	0	0
Equity in earnings of subsidiaries	(8,364)	(8,841)	(25,358)	(14,088)
Income tax (expense) benefit	0	0	0	0
NET INCOME (LOSS)	$ (8,364)	$ (8,841)	$ (25,358)	$ (14,088)