Capital Stock (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	May 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Capital Stock Narrative Details
Stock Issued During Period, Shares, New Issues	6,900,000
Stock Issued During Period, Per Share, New Issues	$ 14.53
Stock Issued During Period, Value, New Issues	$ 93,500	$ 94,053	$ 254	$ 107,033
Shares reserved for issuance upon conversion of Convertible Notes		3,041,451