Capitalized Software Costs (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2012
Activity related to net capitalized software costs
Balance as of April 1	$ 39,152		$ 39,781
Capitalized	2,902	7,300
Amortization	(3,602)	(2,679)
Balance as of June 30	38,452	44,402	39,781
Estimated amortization of capitalized software costs
2015 (remaining nine months)	11,500
2016	13,800
2017	6,700
2018	2,900
2019	2,700
2020 and beyond	852
Total	$ 38,452