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Significant Accounting Policies (Tables)

12 Months Ended

Apr. 30, 2021

Accounting Policies [Abstract]

Summary of Estimated Useful Lives

A summary of the estimated useful lives is as follows:

Description		Useful Life
Building and improvements			10 to 40 years
Software and hardware			2 to 7 years
Machinery and equipment			2 to 10 years

Reconciliation of Net Income/(Loss) Amounts and Weighted Average Number of Common and Common Equivalent Shares Used to Determine Basic and Diluted (Loss)/Earnings per Common Share

The following table provides a reconciliation of the net income/(loss) amounts and weighted average number of common and common equivalent shares used to determine basic and diluted earnings/(loss) per common share (in thousands, except per share data):

	For the Year Ended April 30,
	2021				2020				2019
Net income/(loss)
Income from continuing operations	$	243,571			$	27,653			$	24,920
Income/(loss) from discontinued operations		8,478				(88,883	)			(6,510	)
Net income/(loss)	$	252,049			$	(61,230	)		$	18,410
Weighted average shares outstanding — Basic		54,613				54,983				54,483
Effect of dilutive stock awards		739			682					733
Weighted average shares outstanding — Diluted		55,352				55,665				55,216
Earnings/(loss) per share — Basic
Income from continuing operations	$	4.46			$	0.50			$	0.46
Income/(loss) from discontinued operations	$	0.16			$	(1.62	)		$	(0.12	)
Net income/(loss)	$	4.62			$	(1.11	)		$	0.34
Earnings/(loss) per share — Diluted
Income from continuing operations	$	4.40			$	0.50			$	0.45
Income/(loss) from discontinued operations	$	0.15			$	(1.60	)		$	(0.12	)
Net income/(loss)	$	4.55			$	(1.10	)		$	0.33

Change in Accrued Warranties Recorded as Non-Current Liability

The following table sets forth the change in accrued warranties, a portion of which is recorded as a non-current liability, in the fiscal years ended April 30, 2021, 2020, and 2019 (in thousands):

Balance as of April 30, 2019			5,026
Warranties issued and adjustments to provisions			1,757
Warranty claims			(2,887	)
Balance as of April 30, 2020			3,896
Warranties issued and adjustments to provisions			5,163
Warranty claims			(3,366	)
Balance as of April 30, 2021	$		5,693

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Summary Of Estimated Useful Life Table.

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Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

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