Goodwill and Intangible Assets - Changes in Net Carrying Amount of Goodwill (Detail) - USD ($)	12 Months Ended
Feb. 28, 2019	Feb. 28, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, Beginning balance	$ 70,603,000	$ 70,603,000
Goodwill acquired	11,031,000
Goodwill impairment	0	0
Goodwill, Ending balance	$ 81,634,000	$ 70,603,000

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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