Stock-Based Compensation (Details 8) (Related to the departure of executive officers [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013
Related to the departure of executive officers [Member]
Restricted Stock Retention Awards Issued	325
Value of stock issued for Executives and key employees	$ 8,400
Shares with accelerated vesting for certain executives and key employees	85
Accelerated stock-based comp associated with executive transition	6,400
Value of shares with accelerated vesting for certain executives and key employees	$ 1,400