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Certain Financial Statement Information Other Current Assets (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Mar. 31, 2014
Schedule of Other current assets    
Prepaid expenses $ 9,888 $ 10,978
Executive deferred compensation assets 1,071 1,035
Deposits 554 585
Proceeds receivable from sale of strategic investment 0 3,353
Other 759 848
Other current assets, total $ 12,272 $ 16,799