Fair Value Measurements (Tables)

12 Months Ended

Apr. 24, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value Hierarchy

The following table presents the fair value hierarchy for those assets and liabilities we measured at fair value on a recurring basis at April 24, 2021 and April 25, 2020. There were no transfers into or out of Level 1, Level 2, or Level 3 for any of the periods presented.

At April 24, 2021
	Fair Value Measurements
(Amounts in thousands)	Level 1		Level 2		Level 3		NAV(1)		Total
Assets
Marketable securities	$	119	$	37,572	$	—	$	7,602	$	45,293
Held-to-maturity investments	2,532		—		—		—		2,532
Cost basis investments	—		—		7,579		—		7,579
Total assets	$	2,651	$	37,572	$	7,579	$	7,602	$	55,404
Liabilities
Contingent consideration liability	$	—	$	—	$	14,100	$	—	$	14,100

At April 25, 2020
	Fair Value Measurements
(Amounts in thousands)	Level 1		Level 2		Level 3		NAV(1)		Total
Assets
Marketable securities	$	—	$	31,691	$	—	$	6,515	$	38,206
Held-to-maturity investments	3,337		—		—		—		3,337
Cost basis investment	—		—		6,479		—		6,479
Total assets	$	3,337	$	31,691	$	6,479	$	6,515	$	48,022
Liabilities
Contingent consideration liability	$	—	$	—	$	—	$	—	$	—

(1)Certain marketable securities investments are measured at fair value using net asset value per share under the practical expedient methodology.

Reconciliation of Level 3 Liabilities

The following table is a reconciliation of our Level 3 assets and liabilities recorded at fair value using significant unobservable inputs:

(Amounts in thousands)	Assets		Liabilities
Balance at April 27, 2019	$	11,979	$	7,900
Purchases	500		—
Write-off	(6,000)		(7,900)
Balance at April 25, 2020	6,479		—
Purchases	1,100		—
Fair value adjustment	—		14,100
Balance at April 24, 2021	$	7,579	$	14,100

Reconciliation of Level 3 Assets

The following table is a reconciliation of our Level 3 assets and liabilities recorded at fair value using significant unobservable inputs:

(Amounts in thousands)	Assets		Liabilities
Balance at April 27, 2019	$	11,979	$	7,900
Purchases	500		—
Write-off	(6,000)		(7,900)
Balance at April 25, 2020	6,479		—
Purchases	1,100		—
Fair value adjustment	—		14,100
Balance at April 24, 2021	$	7,579	$	14,100