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Loans - Summary of Allowance for Loan Losses by Portfolio Class and Category (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jun. 30, 2019 | Mar. 31, 2019
Allowance for Loan Losses [Roll Forward] |  |
Balance at December 31, 2018 |  | $ 43,476
Balance | $ 43,822 |
Portfolio loans, net |  |
Allowance for Loan Losses [Roll Forward] |  |
Balance at December 31, 2018 | 41,945 | 42,295
Provision (provision reversal) for loan losses | 1,960 | 1,476
Losses charged off | (1,890) | (2,250)
Recoveries | 920 | 424
Balance | 42,935 | 41,945
Portfolio loans, net | Commercial and industrial |  |
Allowance for Loan Losses [Roll Forward] |  |
Balance at December 31, 2018 | 28,660 | 29,039
Provision (provision reversal) for loan losses | 1,781 | 1,445
Losses charged off | (1,380) | (1,853)
Recoveries | 32 | 29
Balance | 29,093 | 28,660
Portfolio loans, net | CRE - investor owned |  |
Allowance for Loan Losses [Roll Forward] |  |
Balance at December 31, 2018 | 5,339 | 4,683
Provision (provision reversal) for loan losses | 364 | 769
Losses charged off | (431) | (120)
Recoveries | 52 | 7
Balance | 5,324 | 5,339
Portfolio loans, net | CRE - owner occupied |  |
Allowance for Loan Losses [Roll Forward] |  |
Balance at December 31, 2018 | 3,774 | 4,239
Provision (provision reversal) for loan losses | 591 | (431)
Losses charged off | 0 | (36)
Recoveries | 6 | 2
Balance | 4,371 | 3,774
Portfolio loans, net | Construction and land development |  |
Allowance for Loan Losses [Roll Forward] |  |
Balance at December 31, 2018 | 1,699 | 1,987
Provision (provision reversal) for loan losses | (216) | (252)
Losses charged off | 0 | (45)
Recoveries | 489 | 9
Balance | 1,972 | 1,699
Portfolio loans, net | Residential real estate |  |
Allowance for Loan Losses [Roll Forward] |  |
Balance at December 31, 2018 | 1,625 | 1,616
Provision (provision reversal) for loan losses | (345) | (288)
Losses charged off | (26) | (67)
Recoveries | 124 | 364
Balance | 1,378 | 1,625
Portfolio loans, net | Consumer and other |  |
Allowance for Loan Losses [Roll Forward] |  |
Balance at December 31, 2018 | 848 | 731
Provision (provision reversal) for loan losses | (215) | 233
Losses charged off | (53) | (129)
Recoveries | 217 | 13
Balance | $ 797 | $ 848

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- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
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