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Fair Value Measurements (Details) - Recurring - Money market funds, included in cash and cash equivalents - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets:
Money market funds, included in cash and cash equivalents	$ 85,455	$ 95,761
Level 1
Assets:
Money market funds, included in cash and cash equivalents	85,455	95,761
Level 2
Assets:
Money market funds, included in cash and cash equivalents	0	0
Level 3
Assets:
Money market funds, included in cash and cash equivalents	$ 0	$ 0

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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