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Long-Term Leases (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Leases [Abstract]      
Rent expense, operating leases $ 21,689 $ 22,989 $ 22,622
Leases, Operating [Abstract]      
2018 18,150    
2019 10,096    
2020 7,056    
2021 4,716    
2022 2,259    
Remaining 1,601    
Operating Leases, Total $ 43,878