OTHER INCOME, NET (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
OTHER INCOME, NET
Gift card and Club-O rewards breakage									$ 3,308	$ 971	$ 909
Sublease income									355	573	575
Gain (loss) from early retirement of convertible senior notes										(54)	346
Loss from early retirement of finance obligations										(1,199)
Other									23	(13)	258
Total other income, net	$ 1,322	$ 1,213	$ 719	$ 432	$ (684)	$ 553	$ 220	$ 189	$ 3,686	$ 278	$ 2,088