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Concentrations of Credit Risk - Company's Demand Deposits and Temporary Cash Investments (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Concentration Risk [Line Items]
Deposits in FDIC and SIPC-insured institutions under insurance limits	$ 2,043	$ 1,000
Deposits in FDIC and SIPC-insured institutions over insurance limits	125,405	227,961
Deposits in foreign banks	9,342	1,966
Total cash and cash equivalents	136,790	230,927
Less outstanding checks and other reconciling items	(19,266)	(6,012)
Cash and cash equivalents	$ 117,524	$ 224,915	$ 174,185	$ 245,029

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- Definition

Bank Checks Outstanding and Other Reconciling Items

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Total cash and cash equivalents.

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Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
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The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

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The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of deposits held by branches of foreign institutions.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
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