Equity (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 2012 Repurchase Program [Member]	Mar. 13, 2012 2012 Repurchase Program [Member]
Equity (Textual) [Abstract]
Repurchase Limitations						5,000,000
Remaining authorization to repurchase common stock under					$ 1,500,000
Equity (Additional Textual) [Abstract]
Comprehensive income (loss)	3,808,000	(375,000)	(196,685,000)	18,850,000
Stock repurchased during period, shares				605,077
Treasury stock acquired, average cost per share				$ 8.22
Stock repurchased and retired during period, value				5,000,000
Senior note governing repurchases of the Company's common stock limitations per year	5,000,000		5,000,000
Limitations per year for leverage ratio less than or equal to 3.5:1	$ 20,000,000		$ 20,000,000
Consolidated leverage ratio			less than or equal to 3.5:1