Capitalized Software Costs (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Activity related to net capitalized software costs
Balance as of April 1	$ 19,994	$ 15,150
Capitalized	14,117	6,133
Amortization	(4,879)	(3,888)
Balance as of June 30	29,232	17,395
Estimated amortization of capitalized software costs
For the year ended March 31, 2013 (remaining nine months)	4,969
2014	11,377
2015	7,785
2016	3,926
2017 and beyond	1,175
Total	$ 29,232

Capitalized computer software costs estimated amortization.

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- Definition

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

+ References

No definition available.

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- Definition

Capitalized Computer Software costs estimated Amortization in Year Four and Beyond

+ References

No definition available.

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- Definition

Capitalized computer software costs estimated amortization in year one.

+ References

No definition available.

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- Definition

Capitalized computer software costs estimated amortization in year three.

+ References

No definition available.

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Capitalized computer software costs estimated amortization in year two.

+ References

No definition available.

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- Definition

Additions made to capitalized computer software costs during the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

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-Publisher FASB

-Name Implementation Guide (Q and A)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 86

-Paragraph 11

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Accounting Standards Codification

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- Definition

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Implementation Guide (Q and A)

-Number FAS86

-Paragraph 18

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 86

-Paragraph 11

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

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