Stock-based Compensation (Details 2) - USD ($) $ in Thousands	3 Months Ended
May 31, 2020	May 31, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]
Share-based Payment Arrangement, Noncash Expense	$ 1,766	$ 1,350
Share based compensation expense and related income tax benefits
Income tax benefits	$ 390	$ 284

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

Name:	us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration