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Commitments (Tables)
12 Months Ended
Mar. 31, 2015
Commitments [Abstract]  
Future minimum lease commitments
The future minimum lease commitments under these operating leases at March 31, 2015 were as follows (amounts in thousands):
 
Year Ending March 31,
 
Amount
2016
 
$
16,146

2017
 
10,587

2018
 
7,365

2019
 
4,388

2020
 
1,153

Thereafter
 

Total minimum payments
 
$
39,639