Preferred Shares Preferred Shares (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Apr. 10, 2013	Mar. 15, 2007
Preferred Shares [Abstract]
Preferred Stock, Shares Authorized	2,000,000	2,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Shares, Issued					4,000,000
Preferred Stock, Shares Issued	2,000	2,000			4,000
Preferred shares redeemed				2,000
Preferred Stock, Shares Outstanding	2,000
Payments for Repurchase of Redeemable Preferred Stock	$ 0	$ 0	$ 50,352
Preferred Stock, Liquidation Preference, Value	50,000
Preferred dividends	$ 4,875	$ 4,875	$ 3,656