FAIR VALUE MEASUREMENT Reconciliation Assets Measured at Fair Value on a Recurring Basis Using Unobservable Inputs (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Cash Paid For Contingent Consideration	$ 2,519	$ 1,780
Corporate Bond Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	47,850
Unrealized Loss Reported in AOCI	43,871
Effect of exchange rate changes	(550)
Ending Balance	91,171
Dio Equity Option Contracts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	(424)
Unrealized Gain Reported in other expense (income), net	229
Effect of exchange rate changes	2
Ending Balance	(193)
Contingent Considerations On Acquisitions
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	2,917
Cash Paid For Contingent Consideration	(2,493)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements	(412)
Effect of exchange rate changes	(12)
Ending Balance	$ 0