Stockholders' Equity Options Weighted Average Remaining Contractual Life and Exercise Price (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended	1 Months Ended		9 Months Ended
	Dec. 31, 2013	May 31, 2012 Performance-Based RSU [Member]	Nov. 30, 2011 Performance-Based RSU [Member]	Dec. 31, 2013 $ 1.68 - $ 7.60	Dec. 31, 2013 7.61 - 7.67	Dec. 31, 2013 7.68 - 11.86	Dec. 31, 2013 11.87 - 14.20	Dec. 31, 2013 14.21 - 23.32	Dec. 31, 2013 $ 1.68 - $23.32
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		12 years	18 months
Weighted Average Remaining Contractual Life and Weighted Average Per Share Exercise Price of Options Outstanding and Options Exercisable
Range of Exercise Price, minimum (USD per share)				$ 1.68	$ 7.61	$ 7.68	$ 11.87	$ 14.21	$ 1.68
Range of Exercise Price, maximum (USD per share)				$ 7.60	$ 7.67	$ 11.86	$ 14.20	$ 23.32	$ 23.32
Number of Shares, Options Outstanding				562	650	430	493	336	2,471
Weighted average remaining contractual term for options outstanding	2 years 9 months 12 days			3 years 3 months 11 days	2 years 6 months 29 days	3 years 6 months 18 days	2 years 7 months 10 days	1 year 6 months 18 days	2 years 9 months 9 days
Weighted Average Exercise Price, Options Outstanding (USD per share)				$ 6.71	$ 7.67	$ 10.49	$ 12.87	$ 16.78	$ 10.22
Number of Shares, Options Exercisable				473	650	406	478	337	2,344
Weighted Average Exercise Price, Options Exercisable (USD per share)				$ 6.63	$ 7.67	$ 10.42	$ 12.89	$ 16.78	$ 10.31