Fair Value Measurements - Balance Sheet Items (Details) - USD ($)	12 Months Ended
	Nov. 02, 2019	Oct. 31, 2020
Liabilities:
Contingent consideration agreement term	3 years
Contingent consideration	$ 4,372,000	$ 0
Fair Value, Measurements, Recurring
Assets:
Total assets measured at fair value	885,612,000	1,180,842,000
Liabilities:
Total liabilities measured at fair value	24,833,000	29,194,000
Contingent consideration	3,705,000
Fair Value, Measurements, Recurring | Cash equivalents
Assets:
Cash equivalents	759,114,000	939,654,000
Fair Value, Measurements, Recurring | Short-term investments
Assets:
Short-term investments	109,940,000	150,667,000
Fair Value, Measurements, Recurring | Prepaid expenses and other
Assets:
Other assets	1,570,000	82,000
Fair Value, Measurements, Recurring | Long-term investments
Assets:
Long-term investments	10,014,000
Fair Value, Measurements, Recurring | Other long-term assets
Assets:
Other assets	4,974,000	90,439,000
Fair Value, Measurements, Recurring | Accrued liabilities and other short-term obligations
Liabilities:
Accrued liabilities and other short-term obligations	35,000	681,000
Fair Value, Measurements, Recurring | Other long-term obligations
Liabilities:
Other long-term obligations	24,798,000	28,513,000
Fair Value, Measurements, Recurring | Level 1
Assets:
Total assets measured at fair value	764,088,000	947,867,000
Liabilities:
Total liabilities measured at fair value	0	0
Contingent consideration	0
Fair Value, Measurements, Recurring | Level 1 | Cash equivalents
Assets:
Cash equivalents	759,114,000	939,654,000
Fair Value, Measurements, Recurring | Level 1 | Short-term investments
Assets:
Short-term investments	0	0
Fair Value, Measurements, Recurring | Level 1 | Prepaid expenses and other
Assets:
Other assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Long-term investments
Assets:
Long-term investments	0
Fair Value, Measurements, Recurring | Level 1 | Other long-term assets
Assets:
Other assets	4,974,000	8,213,000
Fair Value, Measurements, Recurring | Level 1 | Accrued liabilities and other short-term obligations
Liabilities:
Accrued liabilities and other short-term obligations	0	0
Fair Value, Measurements, Recurring | Level 1 | Other long-term obligations
Liabilities:
Other long-term obligations	0	0
Fair Value, Measurements, Recurring | Level 2
Assets:
Total assets measured at fair value	121,524,000	232,975,000
Liabilities:
Total liabilities measured at fair value	21,128,000	29,194,000
Contingent consideration	0
Fair Value, Measurements, Recurring | Level 2 | Cash equivalents
Assets:
Cash equivalents	0	0
Fair Value, Measurements, Recurring | Level 2 | Short-term investments
Assets:
Short-term investments	109,940,000	150,667,000
Fair Value, Measurements, Recurring | Level 2 | Prepaid expenses and other
Assets:
Other assets	1,570,000	82,000
Fair Value, Measurements, Recurring | Level 2 | Long-term investments
Assets:
Long-term investments	10,014,000
Fair Value, Measurements, Recurring | Level 2 | Other long-term assets
Assets:
Other assets	0	82,226,000
Fair Value, Measurements, Recurring | Level 2 | Accrued liabilities and other short-term obligations
Liabilities:
Accrued liabilities and other short-term obligations	35,000	681,000
Fair Value, Measurements, Recurring | Level 2 | Other long-term obligations
Liabilities:
Other long-term obligations	21,093,000	28,513,000
Fair Value, Measurements, Recurring | Level 3
Assets:
Total assets measured at fair value	0	0
Liabilities:
Total liabilities measured at fair value	3,705,000	0
Contingent consideration	3,705,000
Fair Value, Measurements, Recurring | Level 3 | Cash equivalents
Assets:
Cash equivalents	0	0
Fair Value, Measurements, Recurring | Level 3 | Short-term investments
Assets:
Short-term investments	0	0
Fair Value, Measurements, Recurring | Level 3 | Prepaid expenses and other
Assets:
Other assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Long-term investments
Assets:
Long-term investments	0
Fair Value, Measurements, Recurring | Level 3 | Other long-term assets
Assets:
Other assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Accrued liabilities and other short-term obligations
Liabilities:
Accrued liabilities and other short-term obligations	0	0
Fair Value, Measurements, Recurring | Level 3 | Other long-term obligations
Liabilities:
Other long-term obligations	$ 3,705,000	$ 0