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Defined Contribution Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2015
Defined Contribution Plans
Total matching contributions to saving plans	$ 3.6	$ 3.5	$ 3.2

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- References

No definition available.

+ Details

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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