Certain Financial Statement Information - Schedule of Other current assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Schedule of Other current assets
Prepaid expenses	$ 10,978	$ 13,762
Executive deferred compensation assets	1,035	693
Deposits	585	828
Proceeds receivable from sale of strategic investment	3,353	1,331
Other	848	1,384
Other current assets, total	$ 16,799	$ 17,998