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Goodwill and Other Amortizing Intangible Assets - Summarized Other Intangible Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | $ 28,126 | $ 22,511
Accumulated Amortization | (13,100) | (9,946)
Net Intangible Assets | 15,026 | 12,565
Customer deposit intangibles |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | 25,843 | 20,228
Accumulated Amortization | (11,760) | (8,877)
Net Intangible Assets | 14,083 | 11,351
Customer list intangible |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | 2,283 | 2,283
Accumulated Amortization | (1,340) | (1,069)
Net Intangible Assets | $ 943 | $ 1,214

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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