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Commitments and Contingencies - Guarantees and Warranties (Details) $ in Thousands	3 Months Ended
	Aug. 03, 2019 USD ($)
Movement in Standard Product Warranty Accrual
Beginning accrued warranty obligations	$ 24,470
Warranties issued during the period	3,545
Settlements made during the period	(2,510)
Changes in accrued warranty obligations for pre-existing warranties during the period, including expirations	(55)
Ending accrued warranty obligations	25,450
Performance guarantees | Letter of credit and bank guarantees agreements
Guarantees:
Performance guarantees outstanding	17,248
Performance guarantees | Surety bonds
Guarantees:
Performance guarantees outstanding	$ 21,758

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Amount of loss contingency liability.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty.

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Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties.

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Amount of increase in the standard and extended product warranty accrual from warranties issued.

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