CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net revenues	$ 126,603	$ 116,925
Operating expenses
Cost of revenues (exclusive of depreciation and amortization shown separately below)	53,450	47,342
Selling and marketing	34,034	36,112
General and administrative (exclusive of expenses shown separately below)	15,281	13,781
Research and development	3,379	3,176
Excise and sales tax expense		21
Depreciation	7,945	7,725
Amortization	1,220	1,710
Restructuring costs	161
Asset impairments	25	19
Net legal settlements and related expenses	20
Total operating expenses	115,515	109,886
Operating income	11,088	7,039
Other (expense) income
Interest expense	(1,772)	(2,081)
Interest income	4	16
Other, net	(70)	(211)
Total other expense	(1,838)	(2,276)
Income from continuing operations before income taxes	9,250	4,763
Income tax expense	3,024	1,831
Net income from continuing operations	6,226	2,932
Loss from discontinued operations, net of taxes	(47)	(31)
Net income	$ 6,179	$ 2,901
BASIC WEIGHTED-AVERAGE SHARES OUTSTANDING	48,455	50,759
Basic net income per share
Continuing operations	$ 0.13	$ 0.06
Discontinued operations
Net income per share	$ 0.13	$ 0.06
DILUTED WEIGHTED-AVERAGE SHARES OUTSTANDING	48,929	51,071
Diluted net income per share
Continuing operations	$ 0.13	$ 0.06
Discontinued operations
Net income per share	$ 0.13	$ 0.06