Certain Financial Statement Information Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Mar. 31, 2013
Schedule of Other current assets
Prepaid expenses	$ 11,177	$ 13,762
Executive deferred compensation assets	1,157	693
Deposits	653	828
Receivable from sale of strategic investment and TPack	3,353	1,331
Other	1,489	1,384
Other current assets, total	$ 17,829	$ 17,998	[1]

[1] Amounts have been derived from the March 31, 2013 audited consolidated financial statements.