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Fair Value of Financial Instruments - Schedule of Reconciliation Fair Value Measurements Using Significant Unobservable Inputs (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers Net [Abstract] |  |
Balance at beginning of year | $ 1,876,309 | $ 1,855,305
Purchases of treasury stock | (6,219) | (125,814)
Contributions of treasury stock to ESOP |  | 47,043
Share price adjustment | 883,436 | 99,775
Transfer to permanent equity | $ (2,753,526) |
Balance at end of year |  | $ 1,876,309

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- Definition Fair value measurement with unobservable inputs reconciliation recurring basis liability contributions of treasury stock to ESOP + References No definition available. + Details
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- Definition Fair value measurement with unobservable inputs reconciliation recurring basis liability purchases of treasury stock. + References No definition available. + Details
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- Definition Fair value measurement with unobservable inputs reconciliation recurring basis liability share price adjustment. + References No definition available. + Details
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- Definition Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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