Condensed Consolidated Statements of Stockholders' Deficit Statement - USD ($) $ in Thousands	Total	Common Stock Including Additional Paid in Capital [Member]	Accumulated Deficit [Member]	AOCI Attributable to Parent [Member]
Stockholders' Deficit	$ (1,490,100)	$ 14,990,011	$ (16,477,490)	$ (2,621)
Stock-based compensation expense		37,526
Stock Issued During Period, Value, Employee Stock Purchase Plan		12,577
Stock Repurchased During Period, Value		(603,705)
Net Income	657,574		657,574
Other Comprehensive Income (Loss), Net of Tax	(120)			(120)
Stockholders' Deficit	(1,400,324)	14,592,929	(15,990,895)	(2,358)
Stock-based compensation expense		13,078
Stock Issued During Period, Value, Employee Stock Purchase Plan		4,281
Stock Repurchased During Period, Value		(173,879)
Net Income			170,979
Other Comprehensive Income (Loss), Net of Tax	(383)			(383)
Stockholders' Deficit	(1,386,248)	14,436,409	(15,819,916)	(2,741)
Stockholders' Deficit	(1,390,198)	14,275,160	(15,662,602)	(2,756)
Stock-based compensation expense		42,282
Stock Issued During Period, Value, Employee Stock Purchase Plan		12,404
Stock Repurchased During Period, Value		(536,797)
Net Income	454,748		454,748
Other Comprehensive Income (Loss), Net of Tax	(17)			(17)
Stockholders' Deficit	(1,417,785)	13,949,525	(15,364,476)	(2,834)
Stock-based compensation expense		14,819
Stock Issued During Period, Value, Employee Stock Purchase Plan		4,303
Stock Repurchased During Period, Value		(175,598)
Net Income			156,622
Other Comprehensive Income (Loss), Net of Tax	61			61
Stockholders' Deficit	$ (1,417,578)	$ 13,793,049	$ (15,207,854)	$ (2,773)