Notes Payable, Collateralized and Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Notes Payable, Collateralized and Short-Term Borrowings

Notes payable, collateralized and short-term borrowings consisted of the following (in thousands):

	December 31, 2013		December 31, 2012
8.75% Convertible Notes	$	150,000	$	150,000
4.50% Convertible Notes		147,870		143,354
8.125% Senior Notes		108,904		108,780
Collateralized borrowings		1,582		49,310
Total	$	408,356	$	451,444

Carrying Amounts and Estimated Fair Values of Company's Long-Term Debt

The Company’s Convertible Notes and 8.125% Senior Notes are recorded at amortized cost. The carrying amounts and estimated fair values of the Company’s Convertible Notes and 8.125% Senior Notes were as follows (in thousands):

	December 31, 2013				December 31, 2012
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
8.75% Convertible Notes	$	150,000	$	177,101	$	150,000	$	155,718
4.50% Convertible Notes		147,870		167,600		143,354		147,200
8.125% Senior Notes		108,904		116,460		108,780		116,955
Total	$	406,774	$	461,161	$	402,134	$	419,873

Summary of Company's Convertible Notes

Below is a summary of the Company’s Convertible Notes (in thousands, except share and per share amounts):

	4.50% Convertible Notes						8.75% Convertible Notes
	December 31, 2013			December 31, 2012			December 31, 2013			December 31, 2012
Principal amount of debt component	$	160,000		$	160,000		$	150,000		$	150,000
Unamortized discount		(12,130	)		(16,646	)		—			—
Carrying amount of debt component		147,870			143,354			150,000			150,000
Equity component		18,972			18,972			—			—
Effective interest rate		7.61	%		7.61	%		8.75	%		8.75	%
Maturity date (period through which discount is being amortized)		7/15/2016			7/15/2016			4/15/2015			4/15/2015
Conversion price	$	9.84		$	9.84		$	6.32		$	6.41
Number of shares to be delivered upon conversion		16,260,160			16,260,160			23,738,219			23,384,070
Amount by which the notes’ if-converted value exceeds their principal amount	$	—		$	—		$	—		$	—

Summary of Interest Expense Related to Company's Convertible Notes

Below is a summary of the interest expense related to the Company’s Convertible Notes (in thousands):

	4.50% Convertible Notes				8.75% Convertible Notes
	For the year ended				For the year ended
	December 31, 2013		December 31, 2012		December 31, 2013		December 31, 2012
Coupon interest	$	7,200	$	7,200	$	13,125	$	13,125
Amortization of discount		4,516		4,378		—		—
Total interest expense	$	11,716	$	11,578	$	13,125	$	13,125