Fair Value Measurements and Available for Sale Investments - Available-for-sale Investments (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 507,580	$ 119,680
Gross Unrealized Gains	57	2
Gross Unrealized Losses	(3,710)	(217)
Total Fair Value	503,927	119,465
Short-term investments	370,450	52,368
Long-term investments	129,985	67,097
Agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	36,442	5,821
Gross Unrealized Gains	7	0
Gross Unrealized Losses	(499)	(7)
Total Fair Value	35,950	5,814
Short-term investments	13,300	1,000
Long-term investments	$ 22,700	$ 4,800
Agency securities \| Minimum
Debt Securities, Available-for-sale [Line Items]
Remaining maturity (in years)	1 year	1 year
Agency securities \| Maximum
Debt Securities, Available-for-sale [Line Items]
Remaining maturity (in years)	2 years	2 years
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 3,401	$ 3,770
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(62)	(4)
Total Fair Value	3,339	3,766
Short-term investments	1,400	1,300
Long-term investments	$ 1,900	$ 2,500
Certificates of deposit \| Minimum
Debt Securities, Available-for-sale [Line Items]
Remaining maturity (in years)	1 year	1 year
Certificates of deposit \| Maximum
Debt Securities, Available-for-sale [Line Items]
Remaining maturity (in years)	2 years	2 years
Commercial and corporate obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 56,688	$ 22,094
Gross Unrealized Gains	6	2
Gross Unrealized Losses	(633)	(42)
Total Fair Value	56,061	22,054
Short-term investments	28,500	4,800
Long-term investments	$ 27,600	$ 17,300
Commercial and corporate obligations \| Minimum
Debt Securities, Available-for-sale [Line Items]
Remaining maturity (in years)	1 year	1 year
Commercial and corporate obligations \| Maximum
Debt Securities, Available-for-sale [Line Items]
Remaining maturity (in years)	2 years	2 years
US Treasury Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 411,049	$ 87,995
Gross Unrealized Gains	44	0
Gross Unrealized Losses	(2,516)	(164)
Total Fair Value	408,577	87,831
Short-term investments	330,700	45,300
Long-term investments	$ 77,900	$ 42,500
US Treasury Securities \| Minimum
Debt Securities, Available-for-sale [Line Items]
Remaining maturity (in years)	1 year	1 year
US Treasury Securities \| Maximum
Debt Securities, Available-for-sale [Line Items]
Remaining maturity (in years)	2 years	2 years

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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