Condensed Consolidating Financial Information (Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2013
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities	$ 232,501	$ 233,783
Cash flows from investing activities
Capital expenditures	(94,617)	(100,618)
Proceeds from sale of Echelon, net	0	343,750
Proceeds from sale of North Las Vegas land, net	0	4,875
Cash paid for exercise of LVE option	0	(187,000)
Investment in subsidiaries		0
Cash Divested from Deconsolidation	(26,891)	0
Net Investing Activity with Affiliates	0	0
Proceeds from Equity Method Investment, Dividends or Distributions		0
Other investing activities	3,187	198
Net cash provided by (used in) investing activities	(118,321)	61,205
Cash flows from financing activities
Borrowings under bank credit facility	1,258,000	3,276,975
Payments under bank credit facility	(1,426,650)	(3,335,813)
Proceeds from Contributions from Parent		0
Proceeds from Contributions from Affiliates		0
Debt financing costs	(289)	(36,396)
Payments on long-term debt	(7)	(10,818)
Payments on retirements of long-term debt	(2,850)	(500,272)
Proceeds from Contributions from Affiliates	0	0
Stock options exercised	984	13,591
Restricted stock units released, net	(201)	(354)
Proceeds from (Payments for) Combined Other Financing Activities	(95)	216,467
Net cash used in financing activities	(171,108)	(376,620)
Cash Flows from Discontinued Operations
Cash flows from operating activities	0	(2,144)
Cash flows from investing activities	0	56,751
Cash flows from financing activities		0
Net Cash Provided by (Used in) Discontinued Operations	0	54,607
Cash and cash equivalents, beginning of period	177,838	192,545	165,803
Change in cash classified as discontinued operations		283
Cash and cash equivalents, end of period	(120,910)	(165,803)	(165,803)
Cash and Cash Equivalents, Period Increase (Decrease)	(56,928)	(27,025)
Parent
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities	(43,397)	(204,968)
Cash flows from investing activities
Capital expenditures	(24,090)	(22,927)
Proceeds from sale of Echelon, net		343,750
Proceeds from sale of North Las Vegas land, net		4,875
Cash paid for exercise of LVE option		(187,000)
Investment in subsidiaries		(4,233)
Cash Divested from Deconsolidation	0
Net Investing Activity with Affiliates	0	0
Proceeds from Equity Method Investment, Dividends or Distributions		9,500
Other investing activities	0	0
Net cash provided by (used in) investing activities	(24,090)	143,965
Cash flows from financing activities
Borrowings under bank credit facility	605,000	2,711,375
Payments under bank credit facility	(698,400)	(2,738,325)
Proceeds from Contributions from Parent		0
Proceeds from Contributions from Affiliates		0
Debt financing costs	(84)	(23,562)
Payments on long-term debt	0	(10,341)
Payments on retirements of long-term debt	0	(459,278)
Proceeds from Contributions from Affiliates	160,285	348,910
Stock options exercised	984	13,591
Restricted stock units released, net	(201)	(354)
Proceeds from (Payments for) Combined Other Financing Activities	(95)	216,467
Net cash used in financing activities	67,489	58,483
Cash Flows from Discontinued Operations
Cash flows from operating activities		0
Cash flows from investing activities		0
Cash flows from financing activities		0
Net Cash Provided by (Used in) Discontinued Operations		0
Cash and cash equivalents, beginning of period	0	2,520	0
Change in cash classified as discontinued operations		0
Cash and cash equivalents, end of period	(2)		0
Cash and Cash Equivalents, Period Increase (Decrease)	2	(2,520)
Guarantor Subsidiaries
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities	188,817	348,667
Cash flows from investing activities
Capital expenditures	(36,269)	(36,191)
Proceeds from sale of Echelon, net		0
Proceeds from sale of North Las Vegas land, net		0
Cash paid for exercise of LVE option		0
Investment in subsidiaries		0
Cash Divested from Deconsolidation	0
Net Investing Activity with Affiliates	(169,594)	(331,703)
Proceeds from Equity Method Investment, Dividends or Distributions		0
Other investing activities	1,629	0
Net cash provided by (used in) investing activities	(204,234)	(367,894)
Cash flows from financing activities
Borrowings under bank credit facility	0	0
Payments under bank credit facility	0	0
Proceeds from Contributions from Parent		0
Proceeds from Contributions from Affiliates		0
Debt financing costs	0	0
Payments on long-term debt	0	0
Payments on retirements of long-term debt	0	0
Proceeds from Contributions from Affiliates	0	0
Stock options exercised	0	0
Restricted stock units released, net	0	0
Proceeds from (Payments for) Combined Other Financing Activities	0	0
Net cash used in financing activities	0	0
Cash Flows from Discontinued Operations
Cash flows from operating activities		0
Cash flows from investing activities		0
Cash flows from financing activities		0
Net Cash Provided by (Used in) Discontinued Operations		0
Cash and cash equivalents, beginning of period	106,445	118,714	99,487
Change in cash classified as discontinued operations		0
Cash and cash equivalents, end of period	(91,028)		(99,487)
Cash and Cash Equivalents, Period Increase (Decrease)	(15,417)	(19,227)
Non-Guarantor Subsidiaries (100% Owned)
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities	54,828	29,757
Cash flows from investing activities
Capital expenditures	(22,635)	(25,102)
Proceeds from sale of Echelon, net		0
Proceeds from sale of North Las Vegas land, net		0
Cash paid for exercise of LVE option		0
Investment in subsidiaries		0
Cash Divested from Deconsolidation	0
Net Investing Activity with Affiliates	5,598	(17,067)
Proceeds from Equity Method Investment, Dividends or Distributions		0
Other investing activities	(639)	222
Net cash provided by (used in) investing activities	(17,676)	(41,947)
Cash flows from financing activities
Borrowings under bank credit facility	242,100	268,500
Payments under bank credit facility	(283,350)	(296,688)
Proceeds from Contributions from Parent		0
Proceeds from Contributions from Affiliates		(9,500)
Debt financing costs	0	(10,288)
Payments on long-term debt	(7)	(477)
Payments on retirements of long-term debt	0	0
Proceeds from Contributions from Affiliates	0	0
Stock options exercised	0	0
Restricted stock units released, net	0	0
Proceeds from (Payments for) Combined Other Financing Activities	0	0
Net cash used in financing activities	(41,257)	(48,453)
Cash Flows from Discontinued Operations
Cash flows from operating activities		(2,144)
Cash flows from investing activities		56,751
Cash flows from financing activities		0
Net Cash Provided by (Used in) Discontinued Operations		54,607
Cash and cash equivalents, beginning of period	33,766	36,619	30,866
Change in cash classified as discontinued operations		283
Cash and cash equivalents, end of period	(29,661)		(30,866)
Cash and Cash Equivalents, Period Increase (Decrease)	(4,105)	(6,036)
Non-Guarantor Subsidiaries (Not 100% Owned)
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities	35,866	60,308
Cash flows from investing activities
Capital expenditures	(11,623)	(16,398)
Proceeds from sale of Echelon, net		0
Proceeds from sale of North Las Vegas land, net		0
Cash paid for exercise of LVE option		0
Investment in subsidiaries		0
Cash Divested from Deconsolidation	(26,891)
Net Investing Activity with Affiliates	98	(121)
Proceeds from Equity Method Investment, Dividends or Distributions		0
Other investing activities	2,197	(24)
Net cash provided by (used in) investing activities	(36,219)	(16,543)
Cash flows from financing activities
Borrowings under bank credit facility	410,900	297,100
Payments under bank credit facility	(444,900)	(300,800)
Proceeds from Contributions from Parent		4,233
Proceeds from Contributions from Affiliates		0
Debt financing costs	(205)	(2,546)
Payments on long-term debt	0	0
Payments on retirements of long-term debt	(2,850)	(40,994)
Proceeds from Contributions from Affiliates	0	0
Stock options exercised	0	0
Restricted stock units released, net	0	0
Proceeds from (Payments for) Combined Other Financing Activities	0	0
Net cash used in financing activities	(37,055)	(43,007)
Cash Flows from Discontinued Operations
Cash flows from operating activities		0
Cash flows from investing activities		0
Cash flows from financing activities		0
Net Cash Provided by (Used in) Discontinued Operations		0
Cash and cash equivalents, beginning of period	37,627	34,692	35,450
Change in cash classified as discontinued operations		0
Cash and cash equivalents, end of period	(219)		(35,450)
Cash and Cash Equivalents, Period Increase (Decrease)	(37,408)	758
Eliminations
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities	(3,613)	19
Cash flows from investing activities
Capital expenditures	0	0
Proceeds from sale of Echelon, net		0
Proceeds from sale of North Las Vegas land, net		0
Cash paid for exercise of LVE option		0
Investment in subsidiaries		4,233
Cash Divested from Deconsolidation	0
Net Investing Activity with Affiliates	163,898	348,891
Proceeds from Equity Method Investment, Dividends or Distributions		(9,500)
Other investing activities	0
Net cash provided by (used in) investing activities	163,898	343,624
Cash flows from financing activities
Borrowings under bank credit facility	0	0
Payments under bank credit facility	0	0
Proceeds from Contributions from Parent		(4,233)
Proceeds from Contributions from Affiliates		9,500
Debt financing costs	0	0
Payments on long-term debt	0	0
Payments on retirements of long-term debt	0	0
Proceeds from Contributions from Affiliates	(160,285)	(348,910)
Stock options exercised	0	0
Restricted stock units released, net	0	0
Proceeds from (Payments for) Combined Other Financing Activities	0	0
Net cash used in financing activities	(160,285)	(343,643)
Cash Flows from Discontinued Operations
Cash flows from operating activities		0
Cash flows from investing activities		0
Cash flows from financing activities		0
Net Cash Provided by (Used in) Discontinued Operations		0
Cash and cash equivalents, beginning of period	0	0	0
Change in cash classified as discontinued operations		0
Cash and cash equivalents, end of period	0		0
Cash and Cash Equivalents, Period Increase (Decrease)	$ 0	$ 0