Share Based Awards (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013
Summary of Stock Option Activity
Number of Shares Outstanding Beginning Balance	1,159,183
Weighted Average Exercise Price per Share Outstanding Beginning Balance	$ 30.54
Weighted Average Remaining Contractual Life Outstanding Beginning Balance (in years)	6 years	5 years 6 months
Number of Share Granted	356,000
Weighted Average Exercise Price per Share Granted	$ 17.95
Weighted Average Remaining Contractual Life Granted (in years)	7 years 10 months 24 days
Number of Shares Exercised	(15,214)
Weighted Average Exercise Price per Share Exercised	$ 16.40
Weighted Average Remaining Contractual Life Exercised (in years)	0 years
Aggregate Intrinsic Value, Exercised	$ 35
Number of Shares Forfeited/Canceled	(90,360)
Weighted Average Exercise Price per Share Forfeited/Canceled	$ 32.04
Weighted Average Remaining Contractual Life Forfeited/Canceled (in years)	5 years 4 months 24 days
Number of Shares Outstanding Ending Balance	1,409,609	1,159,183
Weighted Average Exercise Price per Share Outstanding Ending Balance	$ 27.85	$ 30.54
Weighted Average Remaining Contractual Life Outstanding Ending Balance (in years)	6 years	5 years 6 months
Aggregate Intrinsic Value Outstanding Ending Balance	282
Number of Shares Vested and expected to vest	1,330,741
Weighted Average Exercise Price per Share Vested and expected to vest	$ 27.91
Weighted Average Remaining Contractual Life Vested and expected to vest (in years)	6 years
Aggregate Intrinsic Value Vested and expected to vest	259
Number of Shares Exercisable	440,349
Weighted Average Exercise Price per Share Exercisable	$ 29.95
Weighted Average Remaining Contractual Life Exercisable (in years)	4 years 1 month 6 days
Aggregate Intrinsic Value Exercisable	$ 0