Restructuring and Other Charges (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restructuring and other charges, net that related to each segment
Restructuring and other charges, net	$ 8,070	$ 3,655	$ 0
Fleet Management Solutions [Member]
Restructuring and other charges, net that related to each segment
Restructuring and other charges, net	6,448	3,531	0
Supply Chain Solutions [Member]
Restructuring and other charges, net that related to each segment
Restructuring and other charges, net	1,346	124	0
Central Support Services [Member]
Restructuring and other charges, net that related to each segment
Restructuring and other charges, net	$ 276	$ 0	$ 0