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FAIR VALUE MEASUREMENT OF ASSETS AND LIABILITIES - Contingent Consideration Activities (Details) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2017
Jul. 01, 2016
Contingent Consideration Liability [Roll Forward]    
Beginning balance $ 22,426 $ 73,423
Additions to accrual 0 0
Payments 0 0
Fair value adjustments (7,000) 1,835
Ending balance $ 15,426 $ 75,258