CONSOLIDATED STATEMENT OF CHANGES IN EQUITY AND NONCONTROLLING INTEREST (USD $) In Thousands	Convertible Preferred Stock [Member]	Common Class A [Member]	Common Class B [Member]	Common Class C [Member]	Common Class D [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
BALANCE at Dec. 31, 2011	$ 0	$ 3	$ 3	$ 3	$ 41	$ (199)	$ 1,001,840	$ (796,156)	$ 205,063	$ 410,598
Consolidated net (loss) income	0	0	0	0	0	0	0	(36,574)	8,421	(28,153)
Net change in unrealized loss on investment activities	0	0	0	0	0	120	0	0	0	120
Dividends paid to noncontrolling interest	0	0	0	0	0	0	0	0	(5,780)	(5,780)
Conversion of 12,000 shares of Class A common stock to Class D common stock	0	0	0	0	0	0	0	0	0	0
Adjustment of redeemable noncontrolling interest to estimated redemption value	0	0	0	0	0	0	1,776	0	0	1,776
Stock-based compensation expense	0	0	0	0	0	0	90	0	0	90
BALANCE at Jun. 30, 2012	$ 0	$ 3	$ 3	$ 3	$ 41	$ (79)	$ 1,003,706	$ (832,730)	$ 207,704	$ 378,651