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Investments in AFS Debt Securities - Schedule of Investments in Debt Securities (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 205,168	$ 205,168	$ 195,796
Accrued Interest	566	566	462
Gross Unrealized Gains	0	0	4
Gross Unrealized Losses	(7,801)	(7,801)	(1,355)
Fair Value	197,933	197,933	194,907
Amortization of premium	186	477
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	121,284	121,284	103,014
Accrued Interest	151	151	73
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(3,249)	(3,249)	(584)
Fair Value	118,186	118,186	102,503
Multinational securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	19,785	19,785	19,911
Accrued Interest	109	109	109
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(692)	(692)	(154)
Fair Value	19,202	19,202	19,866
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	42,125	42,125	39,894
Accrued Interest	256	256	235
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(2,477)	(2,477)	(480)
Fair Value	39,904	39,904	39,649
Agency TBA
Debt Securities, Available-for-sale [Line Items]
Amortized Cost			7,457
Accrued Interest			13
Gross Unrealized Gains			4
Gross Unrealized Losses			(8)
Fair Value			7,466
Agency mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	9,650	9,650	4,153
Accrued Interest	24	24	14
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(731)	(731)	(31)
Fair Value	8,943	8,943	4,136
Other asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	9,583	9,583	9,610
Accrued Interest	5	5	5
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(466)	(466)	(91)
Fair Value	9,122	9,122	9,524
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost			9,939
Accrued Interest			0
Gross Unrealized Gains			0
Gross Unrealized Losses			0
Fair Value			9,939
Other
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,741	2,741	1,818
Accrued Interest	21	21	13
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	(186)	(186)	(7)
Fair Value	$ 2,576	$ 2,576	$ 1,824

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- Definition

The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.

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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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