Discontinued Operations (Details)	0 Months Ended	3 Months Ended			12 Months Ended
	Jul. 02, 2011 International operations in United Kingdom EUR (€)	Jun. 30, 2011 International operations in United Kingdom USD ($)	Mar. 31, 2011 International operations in Germany and the Netherlands USD ($)	Dec. 31, 2010 International operations in Germany and the Netherlands USD ($)	Dec. 31, 2013 International operations in Germany and the Netherlands USD ($)	Dec. 31, 2012 International operations in Germany and the Netherlands USD ($)
Discontinued operations
Sale of operation	€ 1
Charge to adjust assets and liabilities to net realizable value		2,200,000
Charges in connection with closure of operations			1,400,000	1,500,000	0	0
Gross assets prior to charge taken		4,300,000
Gross liabilities prior to charge taken		$ 2,100,000