Capitalized Software Costs (Details 1) (USD $) In Thousands	6 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Activity related to net capitalized software costs
Balance as of April 1	$ 15,150	$ 11,546
Capitalized	6,133	5,706
Amortization	(3,888)	(3,453)
Balance as of September 30	17,395	13,799
Estimated amortization of capitalized software costs
2012 (remaining six months)	4,317
2013	7,313
2014	4,749
2015	1,016
Total	$ 17,395

Capitalized computer software costs estimated amortization.

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Capitalized computer software costs estimated amortization in remaining part of current year.

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Capitalized computer software costs estimated amortization in year one.

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Capitalized computer software costs estimated amortization in year three.

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Capitalized computer software costs estimated amortization in year two.

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Additions made to capitalized computer software costs during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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For each income statement presented, the amount charged to expense for amortization of capitalized computer software costs.

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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