Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2443-110228

Name:	us-gaap_GainLossOnDispositionOfAssets1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Summary of Significant Accounting Policies - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Gain (Loss) on Disposition of Assets	$ (810)	$ (10,834)	$ (6,602)
Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life	2 years
Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life	19 years