INCOME TAXES - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Line Items]
Income tax paid	$ 74,400,000	$ 76,600,000	$ 66,500,000
Net operating loss carry forwards from acquisitions	38,900,000
Operating loss carry forwards, valuation allowance	3,400,000
Operating loss carry forwards, expiration start date	2015
Undistributed cumulative earnings of foreign subsidiaries	707,000,000
Unrecognized tax liability	10,665,000	9,132,000	7,622,000
Unrecognized tax liability, that would affect effective tax rate, if recognized	10,665,000
Accrual of interest and penalties related to income tax reserves	$ 700,000	$ 100,000