Fair Value Measurements - Condensed Consolidated Balance Sheet (Details) - Fair value, Measurements, Recurring - USD ($) $ in Thousands	May 01, 2021	Oct. 31, 2020
Assets:
Total assets measured at fair value	$ 1,307,906	$ 1,180,842
Liabilities:
Total liabilities measured at fair value	23,079	29,194
Cash equivalents
Assets:
Cash equivalents	1,038,791	939,654
Short-term investments
Assets:
Short-term investments	151,816	150,667
Prepaid expenses and other
Assets:
Other assets	13,785	82
Long-term investments
Assets:
Long-term investments	91,715
Other long-term assets
Assets:
Other assets	11,799	90,439
Accrued liabilities and other short-term obligations
Liabilities:
Accrued liabilities and other short-term obligations	285	681
Other long-term obligations
Liabilities:
Other long-term obligations	22,794	28,513
Level 1
Assets:
Total assets measured at fair value	1,050,590	947,867
Liabilities:
Total liabilities measured at fair value	0	0
Level 1 | Cash equivalents
Assets:
Cash equivalents	1,038,791	939,654
Level 1 | Short-term investments
Assets:
Short-term investments	0	0
Level 1 | Prepaid expenses and other
Assets:
Other assets	0	0
Level 1 | Long-term investments
Assets:
Long-term investments	0
Level 1 | Other long-term assets
Assets:
Other assets	11,799	8,213
Level 1 | Accrued liabilities and other short-term obligations
Liabilities:
Accrued liabilities and other short-term obligations	0	0
Level 1 | Other long-term obligations
Liabilities:
Other long-term obligations	0	0
Level 2
Assets:
Total assets measured at fair value	257,316	232,975
Liabilities:
Total liabilities measured at fair value	23,079	29,194
Level 2 | Cash equivalents
Assets:
Cash equivalents	0	0
Level 2 | Short-term investments
Assets:
Short-term investments	151,816	150,667
Level 2 | Prepaid expenses and other
Assets:
Other assets	13,785	82
Level 2 | Long-term investments
Assets:
Long-term investments	91,715
Level 2 | Other long-term assets
Assets:
Other assets	0	82,226
Level 2 | Accrued liabilities and other short-term obligations
Liabilities:
Accrued liabilities and other short-term obligations	285	681
Level 2 | Other long-term obligations
Liabilities:
Other long-term obligations	22,794	28,513
Level 3
Assets:
Total assets measured at fair value	0	0
Liabilities:
Total liabilities measured at fair value	0	0
Level 3 | Cash equivalents
Assets:
Cash equivalents	0	0
Level 3 | Short-term investments
Assets:
Short-term investments	0	0
Level 3 | Prepaid expenses and other
Assets:
Other assets	0	0
Level 3 | Long-term investments
Assets:
Long-term investments	0
Level 3 | Other long-term assets
Assets:
Other assets	0	0
Level 3 | Accrued liabilities and other short-term obligations
Liabilities:
Accrued liabilities and other short-term obligations	0	0
Level 3 | Other long-term obligations
Liabilities:
Other long-term obligations	$ 0	$ 0