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Income Taxes - Schedule of Unrecognized Tax Benefits Rollforward (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Unrecognized tax benefits, beginning of period $ 1,755 $ 2,568 $ 4,248
Additions:      
Relating to positions taken during current year 0 0 0
Relating to positions taken during prior year 0 0 0
Reductions:      
Relating to tax settlements (85) 0 0
Relating to positions taken during prior year 0 (204) (1,238)
Relating to lapse in statute (53) (609) (442)
Unrecognized tax benefits, end of period $ 1,617 $ 1,755 $ 2,568