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Fair Value Measurements - Schedule of Level 3 Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - Level 3 - Recurring basis - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Securities available for sale, at fair value |  |  |  |
Level 3 Financial Instruments Measured at Fair Value |  |  |  |
Beginning balance | $ 0 | $ 0 | $ 0 | $ 3,089
Total gains: |  |  |  |
Included in other comprehensive income | 0 | 0 | 0 | 4
Purchases, sales, issuances and settlements: |  |  |  |
Purchases | 0 | 0 | 0 | 0
Transfer in and/or out of Level 3 | 0 | 0 | 0 | (3,093)
Ending balance | 0 | 0 | 0 | 0
Change in unrealized gains relating to assets still held at the reporting date | 0 | 0 | 0 | 0
State tax credits held for sale, at fair value |  |  |  |
Level 3 Financial Instruments Measured at Fair Value |  |  |  |
Beginning balance | 299 | 1,274 | 400 | 3,585
Total gains: |  |  |  |
Total gains: | 7 | 0 | 13 | 49
Purchases, sales, issuances and settlements: |  |  |  |
Sales | (135) | 0 | (242) | (2,360)
Ending balance | 171 | 1,274 | 171 | 1,274
Change in unrealized gains relating to assets still held at the reporting date | $ (34) | $ 0 | $ (60) | $ (655)

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- Definition Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Asset Change In Unrealized Relating To Assets Still Held At Reporting Date + References No definition available. + Details
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- Definition Total gains (losses) abstract element. + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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