Goodwill And Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Apr. 30, 2019 |
Apr. 30, 2018 |
Apr. 30, 2017 |
|
| Schedule Of Goodwill And Intangible Assets [Line Items] | |||
| Amortization expense | $ 13.5 | $ 14.7 | $ 15.4 |
| Amortizable intangible assets fully amortization year | 2032 | ||
| General and Administrative Expenses | |||
| Schedule Of Goodwill And Intangible Assets [Line Items] | |||
| Impairment of intangible assets | $ 106.6 | ||
| Pivot Leadership | |||
| Schedule Of Goodwill And Intangible Assets [Line Items] | |||
| Tax deductible goodwill | $ 7.1 | $ 7.0 | |
| X | ||||||||||
- Definition Finite lived intangible assets maximum amortization period. No definition available.
|
| X | ||||||||||
- Definition Schedule Of Goodwill And Intangible Assets [Line Items] No definition available.
|
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|