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Fair Value Accounting and Measurement - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Fair Value Disclosures [Abstract] |  |  |
Visa Class B shares, remaining shares | 77,683 |  |
Fair Value, Option, Changes in Fair Value, Gain (Loss) | $ 508 | $ 0 | $ 0

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- Definition Visa Class B shares, remaining shares + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 + Details
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