Description of Business and Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Significant Accounting Policies [Line Items]
Beginning balance	$ 1,756	$ 1,015	$ 701
Additions	121	782	601
Deductions	(472)	(41)	(287)
Ending balance	$ 1,405	$ 1,756	$ 1,015