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Fair Value Measurements (Details 3) - USD ($)
$ in Thousands
Mar. 31, 2017
Mar. 31, 2016
Derivatives, Fair Value [Line Items]    
Unrealized gains on interest rate swaps $ 1,519 $ 0
Unrealized losses on interest rate swaps 2,324 6,222
Contingent consideration liability $ 1,453 $ 838