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Marketable Securities - Schedule of Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 106,513	$ 149,680
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	5,288
1-5 Years	10,873
5-10 Years	318
Greater than 10 Years	0
Fair Value	16,479	22,155
Government securities - U.S.
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	1,531
1-5 Years	5,938
5-10 Years	807
Greater than 10 Years	1,195
Fair Value	9,471	18,999
Other fixed-income securities
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	0
1-5 Years	1,860
5-10 Years	605
Greater than 10 Years	0
Fair Value	2,465	$ 3,854
Debt Securities
Debt Securities, Available-for-sale [Line Items]
Less than 1 Year	6,819
1-5 Years	18,671
5-10 Years	1,730
Greater than 10 Years	1,195
Fair Value	$ 28,415

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