Leases - Additional Information (Detail) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 11, 2022 USD ($) ft² option	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Operating lease expense		$ 25,000	$ 13,900	$ 63,600	$ 38,700
Operating lease liabilities current		64,595		64,595		$ 51,303
Operating lease liabilities		425,973		425,973		$ 194,616
Operating Lease, Lease Not Yet Commenced
Operating lease, lease not yet commenced, liability to be paid		$ 378,200		$ 378,200
New Lease In San Mateo, California
Operating lease, lease not yet commenced, liability to be paid	$ 212,500
Lessee, lease not yet commenced, term of contract	12 years
Additional leased space (in square feet) | ft²	218,554
Number of renewal options | option	2
Operating lease, renewal term	5 years
Expected proceeds from tenant improvement allowance	$ 22,900
Minimum | Operating Lease, Lease Not Yet Commenced
Lessee, lease not yet commenced, term of contract		3 years		3 years
Maximum | Operating Lease, Lease Not Yet Commenced
Lessee, lease not yet commenced, term of contract		12 years		12 years