Consolidated Statement of Stockholders' Equity (Deficiency) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011 Common Stock [Member]
Number of shares delivered to pay exercise price (in shares)			300,799
Income taxes on note conversion	$ 7,242	$ 14,142
Income taxes on beneficial conversion feature of notes payable		$ 26,066