Condensed Consolidated Statements of Stockholders' Deficiency (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 22,052
Net income	21,216
Change in net loss and prior service cost, net of income taxes	156
Forward contract adjustments, net of income taxes	10
Unrealized gain on long-term investment securities accounted for under the equity method, net of income taxes	8
Change in net unrealized gain on investment securities available for sale, net of income taxes	(5,817)
Net unrealized loss on investment securities available for sale reclassified into net income, net of income taxes	7,642
Unrealized gain on investment securities, net of income taxes	1,825
Total other comprehensive income	1,999
Comprehensive income	23,215
Distributions and dividends on common stock	(46,756)
Note conversions, net of taxes $367	25,522
Exercise of stock options	809
Tax benefit of options exercised	274
Stock-based compensation	1,164
Contributions made by non-controlling interest	66
Ending Balance	26,346
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	11,450
Beginning Balance (in shares)	114,501,014
Note conversions, net of taxes $367	223
Note conversions, net of taxes $367 (in shares)	2,227,552
Exercise of stock options	7
Exercise of stock options (in shares)	70,146
Ending Balance	11,680
Ending Balance (in shares)	116,798,712
Additional Paid-In Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	0
Distributions and dividends on common stock	(27,539)
Note conversions, net of taxes $367	25,299
Exercise of stock options	802
Tax benefit of options exercised	274
Stock-based compensation	1,164
Ending Balance	0
Accumulated Deficit [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(90,160)
Net income	20,956
Distributions and dividends on common stock	(19,217)
Ending Balance	(88,421)
Accumulated Other Comprehensive Income [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	34,540
Change in net loss and prior service cost, net of income taxes	156
Forward contract adjustments, net of income taxes	10
Unrealized gain on long-term investment securities accounted for under the equity method, net of income taxes	8
Change in net unrealized gain on investment securities available for sale, net of income taxes	(5,817)
Net unrealized loss on investment securities available for sale reclassified into net income, net of income taxes	7,642
Ending Balance	36,539
Treasury Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		(12,857)
Ending Balance	(12,857)	(12,857)
Non-controlling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	79,079
Net income	260
Contributions made by non-controlling interest	66
Ending Balance	$ 79,405