Leases - Additional Information (Detail) $ in Thousands		3 Months Ended		6 Months Ended
	Mar. 11, 2022 USD ($) ft² option	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Operating lease expense		$ 21,300	$ 12,800	$ 38,600	$ 24,800
Operating lease liabilities current		55,680		55,680		$ 51,303
Operating lease liabilities		399,776		399,776		$ 194,616
Operating Lease, Lease Not Yet Commenced
Operating lease, lease not yet commenced, liability to be paid		$ 380,200		$ 380,200
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 | 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