SEGMENT AND GEOGRAPHIC INFORMATION (Total Revenue by Major Geographic Area) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Total Revenues	$ 196,652	$ 196,185
United States
Segment Reporting Information [Line Items]
Total Revenues	150,019	148,674
Europe
Segment Reporting Information [Line Items]
Total Revenues	23,617	23,668
Rest of World
Segment Reporting Information [Line Items]
Total Revenues	$ 23,016	$ 23,843