CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $) In Thousands	Total	Convertible Preferred Stock [Member]	Common Stock Class A [Member]	Common Stock Class B [Member]	Common Stock Class C [Member]	Common Stock Class D [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Noncontrolling Interest [Member]
BALANCE at Dec. 31, 2013	$ 284,975	$ 0	$ 3	$ 3	$ 3	$ 39	$ (213)	$ 1,003,116	$ (925,002)	$ 207,026
Consolidated net (loss) income	(20,312)	0	0	0	0	0	0	0	(25,183)	4,871
Net change in unrealized loss on investment activities	120	0	0	0	0	0	120	0	0	0
Conversion of 229,323 shares of Class A common stock to Class D common stock	0	0	0	0	0	0	0	0	0	0
Conversion of 192,142 shares of Class C common stock to Class D common stock	0	0	0	0	0	0	0	0	0	0
Dividends paid to noncontrolling interest	(3,409)	0	0	0	0	0	0	0	0	(3,409)
Adjustment of redeemable noncontrolling interests to estimated redemption value	554	0	0	0	0	0	0	554	0	0
Stock-based compensation expense	45	0	0	0	0	0	0	45	0	0
BALANCE at Mar. 31, 2014	$ 261,973	$ 0	$ 3	$ 3	$ 3	$ 39	$ (93)	$ 1,003,715	$ (950,185)	$ 208,488