Income Taxes - Schedule of Unrecognized Tax Benefits Rollforward (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2010
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning of period	$ 4,248	$ 2,873		$ 4,123
Additions:
Relating to positions taken during current year	0	1,624	1
Relating to positions taken during prior year	0	0	47
Reductions:
Relating to tax settlements	0	0	(293)
Relating to positions taken during prior year	(1,238)	0	(47)
Relating to lapse in statute	(442)	(249)	(958)
Unrecognized tax benefits, end of period	$ 2,568	$ 4,248	$ 2,873	$ 4,123