Rental Merchandise (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Rental Merchandise (Details) [Abstract]
On rent, cost	$ 1,463,636	$ 1,294,966
On rent, accumulated depreciation	(549,018)	(487,569)
Rental merchandise on rent, net	914,618	807,397	754,557
Held for rent, cost	271,193	251,598
Held for rent, accumulated depreciation	(60,743)	(51,476)
Rental merchandise held for rent, net	$ 210,450	$ 200,122	$ 187,969