Fair Value Measurements (Tables)

9 Months Ended

May 02, 2020

Schedule of Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value of Available-for-sale Investments

The following table sets forth the amortized cost, gross unrealized gains, gross unrealized losses and fair values of our short-term and long-term investments accounted for as available-for-sale securities as of May 2, 2020, and August 3, 2019:


	May 2, 2020														August 3, 2019
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Financial Assets:
Investments:
U.S. Treasury securities	$	69,644	$	713	$	(5)	$	70,352	$	49,807	$	100	$	—	$	49,907
Commercial paper	31,154		—		—		31,154		29,761		—		—		29,761
Asset-backed securities	46,513		397		—		46,910		42,587		145		—		42,732
Corporate bonds	82,633		618		(4)		83,247		73,969		279		—		74,248
Total	$	229,944	$	1,728	$	(9)	$	231,663	$	196,124	$	524	$	—	$	196,648

Schedule of Fair Value of Available-for-sale Securities By Contractual Maturity

The following table sets forth the fair value of available-for-sale securities by contractual maturity as of May 2, 2020, and August 3, 2019:


	May 2, 2020														August 3, 2019
(in thousands)	One Year or Less		Over One Year Through Five Years		Over Five Years		Total		One Year or Less		Over One Year Through Five Years		Over Five Years		Total
Financial Assets:
Investments:
U.S. Treasury securities	$	45,495	$	24,857	$	—	$	70,352	$	44,772	$	5,135	$	—	$	49,907
Commercial paper	31,154		—		—		31,154		29,761		—		—		29,761
Asset-backed securities	6,162		40,748		—		46,910		5,412		37,320		—		42,732
Corporate bonds	61,933		21,314		—		83,247		63,331		10,917		—		74,248
Total	$	144,744	$	86,919	$	—	$	231,663	$	143,276	$	53,372	$	—	$	196,648

Schedule of Short-term and Long-term Investments Accounted for as Available-for-sale Measured at Fair Value on Recurring Basis

The following table sets forth our cash equivalents, and short-term and long-term investments accounted for as available-for-sale securities that were measured at fair value on a recurring basis based on the fair value hierarchy as of May 2, 2020, and August 3, 2019:


	May 2, 2020														August 3, 2019
(in thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Financial Assets:
Cash equivalents:
Money market funds	$	2,565	$	—	$	—	$	2,565	$	6,427	$	—	$	—	$	6,427
U.S. Treasury securities	5,508		—		—		5,508		—		—		—		—
Commercial paper	—		—		—		—		—		11,970		—		11,970
Investments:
U.S. Treasury securities	70,352		—		—		70,352		49,907		—		—		49,907
Commercial paper	—		31,154		—		31,154		—		29,761		—		29,761
Asset-backed securities	—		46,910		—		46,910		—		42,732		—		42,732
Corporate bonds	—		83,247		—		83,247		—		74,248		—		74,248
Total	$	78,425	$	161,311	$	—	$	239,736	$	56,334	$	158,711	$	—	$	215,045