Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2014	Nov. 30, 2013
Accrual for warranty returns
Beginning balance	$ 22,492us-gaap_ProductWarrantyAccrual	$ 21,357us-gaap_ProductWarrantyAccrual	$ 19,269us-gaap_ProductWarrantyAccrual	$ 23,150us-gaap_ProductWarrantyAccrual
Additions to the accrual	20,010	12,163	51,850	37,272
Reductions of the accrual - payments and credits issued	(17,257)us-gaap_ProductWarrantyAccrualPayments	(11,429)us-gaap_ProductWarrantyAccrualPayments	(45,874)us-gaap_ProductWarrantyAccrualPayments	(38,331)us-gaap_ProductWarrantyAccrualPayments
Ending balance	$ 25,245us-gaap_ProductWarrantyAccrual	$ 22,091us-gaap_ProductWarrantyAccrual	$ 25,245us-gaap_ProductWarrantyAccrual	$ 22,091us-gaap_ProductWarrantyAccrual
Minimum
Warranties
Product warranty period			2 years
Maximum
Warranties
Product warranty period			5 years

Represents the period for which the product warranties are provided.

No definition available.

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- Details

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- Details

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 5

-Article 9

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(5))

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

+ Details

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- Definition

Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(2))

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

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- Definition

Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(3))

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

+ Details

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