Subsequent Event Debt Refinancing (Details) (Receivables Facility [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Minimum [Member]	Mar. 31, 2014 Maximum [Member]	Jun. 30, 2014 Subsequent Event [Member]
Debt Instrument [Line Items]
Secured debt, Maximum Borrowing Capacity	$ 105.0
Debt Instrument, Basis Spread on Variable Rate	1.35%	1.35%	1.20%	1.35%	1.15%
Debt Instrument, Unused Borrowing Capacity, Fee percentage	0.40%	0.40%			0.35%