Commitments And Contingencies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments And Contingencies [Abstract]
Office facility expense	$ 1,500,000	$ 1,400,000	$ 1,400,000
Outstanding letter of credit	100,000	100,000
Rental equipment payable	7,381,000	45,181,000
Commitments to purchase container rental equipment	$ 122,500,000