Condensed Consolidating Financial Information (Schedule Of Condensed Consolidating Statement Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Condensed Income Statements, Captions [Line Items]
Total revenues	$ 123,494	$ 193,475	$ 223,544	$ 350,687
Total costs and expenses	196,567	188,188	329,531	334,846
Income (loss) from continuing operations before income taxes	(73,073)	5,287	(105,987)	15,841
Income tax (expense) benefit	26,103	(2,073)	37,541	(6,006)
Equity (deficit) in income of subsidiaries	0	0	0	0
Income (loss) from continuing operations	(46,970)	3,214	(68,446)	9,835
Income (loss) from discontinued operations, net of income taxes	838	(895)	1,104	(1,540)
Net Income (loss)	(46,132)	2,319	(67,342)	8,295
Eliminations [Member]
Condensed Income Statements, Captions [Line Items]
Total revenues	0	0	0	0
Total costs and expenses	(6,469)	1,011	(5,301)	2,209
Income (loss) from continuing operations before income taxes	6,469	(1,011)	5,301	(2,209)
Income tax (expense) benefit	(1,737)	400	(1,410)	312
Equity (deficit) in income of subsidiaries	(10,817)	(53,800)	(7,132)	(96,797)
Income (loss) from continuing operations	(6,085)	(54,411)	(3,241)	(98,694)
Income (loss) from discontinued operations, net of income taxes	0	0	0	0
Net Income (loss)	(6,085)	(54,411)	(3,241)	(98,694)
Parent Company [Member] | Reportable Legal Entities [Member]
Condensed Income Statements, Captions [Line Items]
Total revenues	660	1,206	1,250	2,772
Total costs and expenses	96,843	78,089	123,511	133,640
Income (loss) from continuing operations before income taxes	(96,183)	(76,883)	(122,261)	(130,868)
Income tax (expense) benefit	33,664	26,908	42,792	45,803
Equity (deficit) in income of subsidiaries	10,817	53,800	7,132	96,797
Income (loss) from continuing operations	(51,702)	3,825	(72,337)	11,732
Income (loss) from discontinued operations, net of income taxes	838	(895)	1,104	(1,540)
Net Income (loss)	(50,864)	2,930	(71,233)	10,192
Combined Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Condensed Income Statements, Captions [Line Items]
Total revenues	122,891	192,269	222,294	347,915
Total costs and expenses	106,409	109,088	211,321	198,997
Income (loss) from continuing operations before income taxes	16,482	83,181	10,973	148,918
Income tax (expense) benefit	(5,769)	(29,381)	(3,841)	(52,121)
Equity (deficit) in income of subsidiaries	0	0	0	0
Income (loss) from continuing operations	10,713	53,800	7,132	96,797
Income (loss) from discontinued operations, net of income taxes	0	0	0	0
Net Income (loss)	10,713	53,800	7,132	96,797
Combined Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Condensed Income Statements, Captions [Line Items]
Total revenues	(57)	0	0	0
Total costs and expenses	(216)	0	0	0
Income (loss) from continuing operations before income taxes	159	0	0	0
Income tax (expense) benefit	(55)	0	0	0
Equity (deficit) in income of subsidiaries	0	0	0	0
Income (loss) from continuing operations	104	0	0	0
Income (loss) from discontinued operations, net of income taxes	0	0	0	0
Net Income (loss)	$ 104	$ 0	$ 0	$ 0