Balance Sheet Components - Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 1,532,000
Operating lease liabilities	1,613,234
Lease Cost:
Lease costs	448,000
Operating lease cost	218,000
Short-term lease cost	230,000
Rent expense		$ 107,000	$ 75,000
Cash paid for operating lease liabilities	192,084
Right-of-use assets obtained in exchange for new operating lease obligations	$ 1,672,462
Weighted-average remaining lease term	8 years 9 months 18 days
Weighted-average discount rate	5.00%
Operating lease, liability, leases not commenced	$ 699,000
ASU 2016-02
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets				$ 743,000
Operating lease liabilities				$ 813,000
Minimum
Lessee, Lease, Description [Line Items]
Lease term of contract	1 year
Lease renewal term	1 year
Lease Cost:
Lease not yet commenced, term of contract	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease term of contract	15 years
Lease renewal term	15 years
Lease Cost:
Lease not yet commenced, term of contract	15 years