Intangibles (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	Jul. 31, 2019	Apr. 30, 2019
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangibles, gross	$ 274,000	$ 274,000
Less accumulated amortization	(72,306)	(60,889)
Intangibles, net	201,694	213,111
Trademarks
Finite-Lived Intangible Assets [Line Items]
Intangibles, gross	10,000	10,000
Less accumulated amortization	(5,278)	(4,445)
Intangibles, net	$ 4,722	$ 5,555

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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