Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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Business Acquisitions - Preliminary components of intangible assets (Details) - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
	Jun. 01, 2018	Jan. 31, 2019	Apr. 30, 2018
Customer relationships
Acquisition of Titan
Weighted Average Amortization Period (in years)		12 years 10 months 24 days	10 years 10 months 24 days
Tradenames
Acquisition of Titan
Weighted Average Amortization Period (in years)		16 years 3 months 18 days	18 years
Developed technology
Acquisition of Titan
Weighted Average Amortization Period (in years)		4 years 10 months 24 days
Other
Acquisition of Titan
Weighted Average Amortization Period (in years)		3 years 4 months 24 days	5 years
Titan
Acquisition of Titan
Fair value	$ 286,954	$ 286,954
Titan \| Customer relationships
Acquisition of Titan
Fair value	$ 246,954
Weighted Average Amortization Period (in years)	15 years
Titan \| Tradenames
Acquisition of Titan
Fair value	$ 30,870
Weighted Average Amortization Period (in years)	15 years
Titan \| Developed technology
Acquisition of Titan
Fair value	$ 5,402
Weighted Average Amortization Period (in years)	5 years
Titan \| Non-compete agreements
Acquisition of Titan
Fair value	$ 2,856
Weighted Average Amortization Period (in years)	3 years
Titan \| Other
Acquisition of Titan
Fair value	$ 872
Weighted Average Amortization Period (in years)	3 years