ACCOUNTING POLICIES (Details 4) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 item	Jun. 30, 2011	Dec. 31, 2011
Revenue recognition
Number of primary sources of revenue			2
Number of principal segments			2
Product delivery period from date of shipment, minimum			1 day
Product delivery period from date of shipment, maximum			8 days
Fulfillment partner revenue
Maximum Revenue from Other Businesses as a Percentage of Aggregate Net Revenues			1.00%
Club O loyalty program
Expiration period of Club O reward dollars after expiration of the customer's membership			90 days
Deferred revenue
Likelihood of gift card redemption to be remote, period			36 months
Sales returns allowance
Sales return period for which full refund will be granted			30 days
Sales return period for which reduced refund will be granted			30 days
Sales return received at returns processing facility for which reduced refund will be granted, period			45 days
Allowance for sales returns			$ 5,700,000		$ 10,900,000
Credit card chargeback allowance
Credit card chargeback allowance	134,000		134,000		187,000
Cost of goods sold
Total revenue, net	239,536,000	234,992,000	501,903,000	500,462,000
Total revenue, net (as a percent)	100.00%	100.00%	100.00%	100.00%
Cost of goods sold
Product costs and other cost of goods sold	184,121,000	182,869,000	385,914,000	384,129,000
Fulfillment and related costs	12,246,000	12,353,000	25,312,000	26,479,000
Total cost of goods sold	196,367,000	195,222,000	411,226,000	410,608,000
Product costs and other cost of goods sold (as a percent)	77.00%	78.00%	77.00%	77.00%
Fulfillment and related costs (as a percent)	5.00%	5.00%	5.00%	5.00%
Total cost of goods sold (as a percent)	82.00%	83.00%	82.00%	82.00%
Gross profit	43,169,000	39,770,000	90,677,000	89,854,000
Gross profit (as a percent)	18.00%	17.00%	18.00%	18.00%
Advertising expense
Advertising expense	11,600,000	11,300,000	24,100,000	24,200,000
Prepaid advertising expense	$ 1,100,000		$ 1,100,000		$ 1,400,000