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Loans - Summary of Recorded Investment in Portfolio Loans by Class and Category Based on Impairment Method (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
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Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] |  |
Total | $ 43,095 | $ 43,476
Loans - Ending balance: |  |
Loans and Leases Receivable, Gross | 5,017,077 | 4,350,001
Portfolio loans, net |  |
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] |  |
Individually evaluated for impairment | 2,914 | 4,453
Collectively evaluated for impairment | 39,031 | 37,842
Total | 41,945 | 42,295
Loans - Ending balance: |  |
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums | (1,912) | (2,026)
Individually evaluated for impairment | 11,436 | 18,071
Collectively evaluated for impairment | 4,883,138 | 4,285,529
Total | 4,896,486 | 4,305,626
Loans and Leases Receivable, Gross | 4,894,574 | 4,303,600
Portfolio loans, net | Commercial and industrial |  |
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] |  |
Individually evaluated for impairment | 2,199 | 4,266
Collectively evaluated for impairment | 26,461 | 24,773
Total | 28,660 | 29,039
Loans - Ending balance: |  |
Individually evaluated for impairment | 7,205 | 12,950
Collectively evaluated for impairment | 2,202,232 | 2,108,058
Total | 2,209,437 | 2,121,008
Portfolio loans, net | CRE - investor owned |  |
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] |  |
Individually evaluated for impairment | 596 | 0
Collectively evaluated for impairment | 4,743 | 4,683
Total | 5,339 | 4,683
Loans - Ending balance: |  |
Individually evaluated for impairment | 1,527 | 398
Collectively evaluated for impairment | 1,143,341 | 843,330
Total | 1,144,868 | 843,728
Portfolio loans, net | CRE - owner occupied |  |
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] |  |
Individually evaluated for impairment | 119 | 109
Collectively evaluated for impairment | 3,655 | 4,130
Total | 3,774 | 4,239
Loans - Ending balance: |  |
Individually evaluated for impairment | 2,296 | 2,135
Collectively evaluated for impairment | 644,902 | 602,363
Total | 647,198 | 604,498
Portfolio loans, net | Construction and land development |  |
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] |  |
Individually evaluated for impairment | 0 | 0
Collectively evaluated for impairment | 1,699 | 1,987
Total | 1,699 | 1,987
Loans - Ending balance: |  |
Individually evaluated for impairment | 0 | 0
Collectively evaluated for impairment | 358,884 | 330,097
Total | 358,884 | 330,097
Portfolio loans, net | Residential real estate |  |
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] |  |
Individually evaluated for impairment | 0 | 52
Collectively evaluated for impairment | 1,625 | 1,564
Total | 1,625 | 1,616
Loans - Ending balance: |  |
Individually evaluated for impairment | 408 | 2,277
Collectively evaluated for impairment | 416,323 | 296,667
Total | 416,731 | 298,944
Portfolio loans, net | Consumer and other |  |
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] |  |
Individually evaluated for impairment | 0 | 26
Collectively evaluated for impairment | 848 | 705
Total | 848 | 731
Loans - Ending balance: |  |
Individually evaluated for impairment | 0 | 311
Collectively evaluated for impairment | 117,456 | 105,014
Total | 119,368 | 107,351
Loans and Leases Receivable, Gross | $ 117,456 | $ 105,325

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- Definition Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] + References No definition available. + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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- Definition Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(3)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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