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Commitments And Contingencies (Tables)
12 Months Ended
Mar. 31, 2012
Commitments And Contingencies [Abstract]  
Schedule Of Operating Leases Expiration And Minimum Lease Payments
  Operating
Fiscal Year Ending March 31, Lease
  (In thousands)
2013 142,912
2014 112,680
2015 73,316
2016 56,862
2017 49,006
Thereafter 119,631
Total minimum lease payments 554,407