Capital Stock (Detail Textuals) (USD $)	0 Months Ended		2 Months Ended	11 Months Ended	12 Months Ended			0 Months Ended	1 Months Ended			2 Months Ended	11 Months Ended	12 Months Ended			11 Months Ended	0 Months Ended	1 Months Ended	2 Months Ended	11 Months Ended	12 Months Ended		0 Months Ended
	Apr. 16, 2013	Mar. 13, 2013	Dec. 13, 2012	Dec. 31, 2013	Jan. 31, 2013	Jan. 31, 2012	Jul. 12, 2013	Apr. 16, 2013 Common Class A [Member]	Mar. 14, 2013 Common Class A [Member]	May 31, 2011 Common Class A [Member]	Jan. 31, 2011 Common Class A [Member]	Dec. 13, 2012 Common Class A [Member]	Dec. 31, 2013 Common Class A [Member]	Jan. 31, 2012 Common Class A [Member]	Jul. 12, 2013 Common Class A [Member]	Mar. 13, 2013 Common Class A [Member]	Dec. 31, 2013 Common Class B [Member]	Mar. 15, 2013 Series A Preferred Stock	Mar. 14, 2013 Series A Preferred Stock	Dec. 13, 2012 Series A Preferred Stock	Dec. 31, 2013 Series A Preferred Stock D	Jan. 31, 2013 Series A Preferred Stock	Jan. 31, 2012 Series A Preferred Stock	Apr. 16, 2013 2014 Senior Notes [Member]	Dec. 31, 2013 2014 Senior Notes [Member]	Jul. 12, 2013 2014 Senior Notes [Member]
Class of Stock [Line Items]
Common stock voting rights, number of board members elected													4				9
Common stock voting rights, votes per share													one vote per share				ten votes per share
Share of Class A common stock issued in exchange of debt								9,549,721		3,444,293	9,774,039		13,679,000	3,444,000
Senior note exchanged for stock, value of senior note exchanged																								$ 138,853,000
Cash payment for additional exchange consideration, accrued interest and in lieu of fractional shares	4,860,000
Aggregate principal amount of senior notes put to the company																										60,033,000
Number of shares received by the note holder upon a put															4,128,806										68.7758
Cash payments for interest payable and in lieu of fractional shares for put transaction							1,088,000
Common shares issued for preferred stock												13,852,435
Stock conversion description																					Holder would receive approximately 3.3 shares of Class A common stock per $50 liquidation preference of Series A preferred stock
Number of common shares in lieu of preferred stock liquidation													3.3
Preferred stock, liquidation preference																					$ 50	$ 50
Exchange of preferred stock, initial conversion price												$ 15.12	$ 15.12
Preferred stock conversion description																					Daily Volume Weighted Average Price of its Class A common stock equaled or exceeded 150% of the initial conversion price then in effect for at least 20 out of 30 consecutive trading days
Percentage initial conversion price																					150.00%
Number of initial conversion days for determination of conversion price																					20
Number of consecutive trading days																					30
Exchange of preferred stock, aggregate liquidation preference amount																				209,447,600
Exchange of preferred stock, preferred shares exchanged																				4,188,952
Cash payments for additional exchange consideration			19,069,000	0	(19,069,000)	0
Conversion of stock, shares converted									362,990										109,768
Remaining shares of Series A preferred stock redeemed																		101,270			101,000
Redeemed stock, aggregate amount of liquidation preference plus dividend				5,063,000														5,100,000			5,063,000
Shares received upon settlement of equity call hedge																765,134
Value of shares received upon settlement of equity call hedge																$ 16.82
Amount received upon settlement of equity call hedge																12,868,000
Cash payments received upon settlement of equity call hedge		10,231,000		10,231,000	0	0
Preferred dividends declared and paid				$ 185,000	$ 13,060,000	$ 15,400,000															$ 185,000	$ 13,060,000	$ 15,400,000