OPERATING SEGMENTS - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Segment Reporting Information [Line Items]
Number of operating business segments	2
International | Maximum
Segment Reporting Information [Line Items]
Percentage of total revenues	10.00%	10.00%	10.00%
Percentage of total assets	10.00%	10.00%	10.00%