SouthState (SSB) 10-Q 3 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 30, 2019
Document and Entity Information
Entity Registrant Name	SOUTH STATE Corp
Entity Central Index Key	0000764038
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		35,368,523
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Cash and cash equivalents:
Cash and due from banks	$ 225,865	$ 251,411	$ 227,264
Interest-bearing deposits with banks	723,726	124,895	362,773
Federal funds sold and securities purchased under agreements to resell		32,677	54,467
Total cash and cash equivalents	949,591	408,983	644,504
Investment securities:
Securities held to maturity (fair value of $0 and $1,284, respectively)			1,274
Securities available for sale, at fair value	1,466,249	1,517,067	1,640,837
Other investments	40,624	25,604	23,479
Total investment securities	1,506,873	1,542,671	1,665,590
Loans held for sale	33,297	22,925	42,690
Loans:
Loans, net	11,089,600	10,962,037	10,589,521
Other real estate owned	11,297	11,410	11,073
Premises and equipment, net	322,553	241,076	253,605
Bank owned life insurance	230,629	230,105	226,222
Deferred tax assets	31,884	37,128	46,736
Mortgage servicing rights	32,415	34,727	34,196
Core deposit and other intangibles	59,619	62,900	70,376
Goodwill	1,002,900	1,002,900	999,592
Other assets	136,229	119,466	105,004
Total assets	15,406,887	14,676,328	14,689,109
Deposits:
Noninterest-bearing	3,219,864	3,061,769	3,120,818
Interest-bearing	8,699,107	8,585,164	8,542,280
Total deposits	11,918,971	11,646,933	11,663,098
Federal funds purchased and securities sold under agreements to repurchase	276,891	270,649	357,574
Other borrowings	616,250	266,084	215,589
Other liabilities	218,298	126,366	130,269
Total liabilities	13,030,410	12,310,032	12,366,530
Shareholders' equity:
Common stock - $2.50 par value; authorized 80,000,000 shares; 35,368,521, 35,829,549 and 36,783,438 shares issued and outstanding, respectively	88,421	89,574	91,958
Surplus	1,719,396	1,750,495	1,807,989
Retained earnings	582,034	551,108	452,982
Accumulated other comprehensive loss	(13,374)	(24,881)	(30,350)
Total shareholders' equity	2,376,477	2,366,296	2,322,579
Total liabilities and shareholders' equity	15,406,887	14,676,328	14,689,109
Acquired credit impaired loans
Loans:
Loans, net	452,258	485,119	597,274
Total loans	456,772	489,723	601,358
Acquired non-credit impaired loans
Loans:
Total loans	2,378,737	2,594,826	3,274,938
Non-acquired loans
Loans:
Total loans	8,310,613	7,933,286	6,762,512
Less allowance for non-acquired loan losses	(52,008)	(51,194)	(45,203)
Loans, net	$ 8,258,605	$ 7,882,092	$ 6,717,309

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Investment securities:
Securities held to maturity, fair value (in dollars)	$ 0	$ 1,284
Shareholders' equity:
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50	$ 2.50
Common stock, shares authorized	80,000,000	80,000,000	80,000,000
Common stock, shares issued	35,368,521	35,829,549	36,783,438
Common stock, shares outstanding	35,368,521	35,829,549	36,783,438

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest income:
Loans, including fees	$ 131,834	$ 127,041
Investment securities:
Taxable	8,597	8,788
Tax-exempt	1,496	1,559
Federal funds sold and securities purchased under agreements to resell	1,463	660
Total interest income	143,390	138,048
Interest expense:
Deposits	16,645	6,913
Federal funds purchased and securities sold under agreements to repurchase	753	454
Other borrowings	2,725	1,708
Total interest expense	20,123	9,075
Net interest income	123,267	128,973
Provision for loan losses	1,488	2,454
Net interest income after provision for loan losses	121,779	126,519
Noninterest income:
Securities gains, net	541
Recoveries on acquired loans	1,867	2,975
Other	2,188	2,575
Total noninterest income	32,058	40,555
Noninterest expense:
Salaries and employee benefits	58,431	62,465
Net occupancy expense	7,199	8,166
Information services expense	9,009	9,738
Furniture and equipment expense	4,413	4,626
OREO expense and loan related	751	1,661
Amortization of intangibles	3,281	3,413
Supplies, printing and postage expense	1,504	1,392
Professional fees	2,240	1,699
FDIC assessment and other regulatory charges	1,535	1,263
Advertising and marketing	807	736
Merger and branch consolidation related expense	1,114	11,296
Other	7,955	7,008
Total noninterest expense	98,239	113,463
Earnings:
Income before provision for income taxes	55,598	53,611
Provision for income taxes	11,231	11,285
Net income	$ 44,367	$ 42,326
Earnings per common share:
Basic (in dollars per share)	$ 1.25	$ 1.15
Diluted (in dollars per share)	1.25	1.15
Dividends per common share (in dollars per share)	$ 0.38	$ 0.33
Weighted average common shares outstanding:
Basic (in shares)	35,445	36,646
Diluted (in shares)	35,619	36,899
Fees on deposit accounts
Noninterest income:
Noninterest income	$ 17,808	$ 22,543
Mortgage banking income
Noninterest income:
Noninterest income	2,385	4,948
Trust and investment services income
Noninterest income:
Noninterest income	$ 7,269	$ 7,514

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 44,367	$ 42,326
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during period	16,752	(22,082)
Tax effect	(3,686)	4,890
Reclassification adjustment for gains included in net income	541
Tax effect	(119)
Net of tax amount	13,488	(17,192)
Unrealized losses on derivative financial instruments qualifying as cash flow hedges:
Unrealized holding gains (losses) arising during period	(2,651)	36
Tax effect	583	(8)
Reclassification adjustment for gains (losses) included in interest expense	(10)	47
Tax effect	2	(10)
Net of tax amount	(2,076)	65
Change in pension plan obligation:
Reclassification adjustment for changes included in net income	121	194
Tax effect	(26)	(43)
Net of tax amount	95	151
Other comprehensive gain (loss), net of tax	11,507	(16,976)
Comprehensive income	$ 55,874	$ 25,350

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Dec. 31, 2017	$ 91,899	$ 1,807,601	$ 419,847	$ (10,427)	$ 2,308,920
Balance (in shares) at Dec. 31, 2017	36,759,656
Increase (Decrease) in Stockholders' Equity
Comprehensive income			42,326	(16,976)	25,350
Cash dividends declared on common stock per share			(12,138)		(12,138)
AOCI reclassification to retained earnings from adoption of ASU 2018-02			2,947	(2,947)
Stock options exercised	$ 5	61			66
Stock options exercised (in shares)	2,240
Restricted stock awards	$ 3	(3)
Restricted stock awards (in shares)	1,169
Stock issued pursuant to restricted stock units.	$ 96	(96)
Stock issued pursuant to restricted stock units (in shares)	38,365
Common stock repurchased	$ (45)	(1,567)			(1,612)
Common stock repurchased (in shares)	(17,992)
Share-based compensation expense		1,993			1,993
Balance at Mar. 31, 2018	$ 91,958	1,807,989	452,982	(30,350)	$ 2,322,579
Balance (in shares) at Mar. 31, 2018	36,783,438				36,783,438
Balance at Dec. 31, 2018	$ 89,574	1,750,495	551,108	(24,881)	$ 2,366,296
Balance (in shares) at Dec. 31, 2018	35,829,549				35,829,549
Increase (Decrease) in Stockholders' Equity
Comprehensive income			44,367	11,507	$ 55,874
Cash dividends declared on common stock per share			(13,441)		(13,441)
Stock options exercised	$ 32	370			402
Stock options exercised (in shares)	12,722
Restricted stock awards	$ 1	(1)
Restricted stock awards (in shares)	31
Stock issued pursuant to restricted stock units.	$ 122	(122)
Stock issued pursuant to restricted stock units (in shares)	49,229
Common stock repurchased - buyback plan	$ (1,250)	(32,017)			(33,267)
Common stock repurchased - buyback plan (in shares)	(500,000)
Common stock repurchased	$ (58)	(1,460)			(1,518)
Common stock repurchased (in shares)	(23,010)
Share-based compensation expense		2,131			2,131
Balance at Mar. 31, 2019	$ 88,421	$ 1,719,396	$ 582,034	$ (13,374)	$ 2,376,477
Balance (in shares) at Mar. 31, 2019	35,368,521				35,368,521

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Consolidated Statements of Changes in Shareholders' Equity
Cash dividends declared, per share (in dollars per share)	$ 0.38	$ 0.33

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 44,367	$ 42,326
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,527	8,939
Provision for loan losses	1,488	2,454
Deferred income taxes	1,998	3,993
Gain on sale of securities, net	(541)
Share-based compensation expense	2,131	1,993
Accretion of discount related to performing acquired loans	(3,170)	(9,656)
(Gain) loss on disposal of premises and equipment	271	(72)
Gain on sale of OREO	(2)	(58)
Net amortization of premiums on investment securities	1,699	1,966
OREO write downs	98	777
Fair value adjustment for loans held for sale	(156)	(215)
Originations and purchases of loans held for sale	(127,166)	(154,234)
Proceeds from sales of loans	116,951	182,649
Net change in:
Accrued interest receivable	(968)	1,553
Prepaid assets	(2,061)	(526)
Operating Leases	256
Miscellaneous other assets	(13,306)	14,251
Accrued interest payable	969	775
Accrued income taxes	9,231	6,984
Miscellaneous other liabilities	(3,102)	1,846
Net cash provided by operating activities	37,514	105,745
Cash flows from investing activities:
Proceeds from sales of investment securities available for sale	134,486	5,215
Proceeds from maturities and calls of investment securities held to maturity		1,255
Proceeds from maturities and calls of investment securities available for sale	55,242	57,972
Proceeds from sales of other investment securities	45	2,125
Purchases of investment securities available for sale	(122,774)	(79,661)
Purchases of other investment securities	(15,066)	(2,556)
Net increase in loans	(127,840)	(10,461)
Net cash received from acquisitions		6
Recoveries of loans previously charged off	958	966
Purchases of premises and equipment	(3,436)	(3,615)
Proceeds from sale of OREO	1,019	2,516
Proceeds from sale of premises and equipment	6	6
Net cash used in investing activities	(77,360)	(26,232)
Cash flows from financing activities:
Net increase in deposits	272,038	130,332
Net increase in federal funds purchased and securities sold under agreements to repurchase and other short-term borrowings	6,242	70,717
Proceeds from FHLB advances	500,000	50,000
Repayment of other borrowings	(150,002)	(50,001)
Common stock repurchase	(34,785)	(1,612)
Dividends paid on common stock	(13,441)	(12,138)
Stock options exercised	402	66
Net cash provided by financing activities	580,454	187,364
Net increase in cash and cash equivalents	540,608	266,877
Cash and cash equivalents at beginning of period	408,983	377,627
Cash and cash equivalents at end of period	949,591	644,504
Cash paid for:
Interest	19,154	8,300
Income taxes	874	786
Initial measurement and recognition of operating lease assets in exchange for lease liabilities per ASU 2016-02	82,160
Recognition of operating lease assets in exchange for lease liabilities	1,956
Acquisitions:
Fair value of tangible assets acquired		(5)
Net identifiable assets acquired over liabilities assumed		(5)
Real estate acquired in full or in partial settlement of loans	$ 1,004	$ 2,895

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2019
Basis of Presentation
Basis of Presentation	Note 1 — Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Certain prior period information has been reclassified to conform to the current period presentation, and these reclassifications had no impact on net income or equity as previously reported. Operating results for the three months ended March 31, 201 9 are not necessarily indicative of the results that may be expected for the year ending December 31, 201 9 . The condensed consolidated balance sheet at December 31, 201 8 has been derived from the audited financial statements at that date but does not include all of the information and disclosures required by GAAP for complete financial statements.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 2 — Summary of Significant Accounting Policies The information contained in the consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 201 8 , as filed with the Securities and Exchange Commission (the “SEC”) on February 22, 2019, should be referenced when reading these unaudited condensed consolidated financial statements. Unless otherwise mentioned or unless the context requires otherwise, references herein to “South State,” the “Company” “we,” “us,” “our” or similar references mean South State Corporation and its consolidated subsidiary. References to the “Bank” means South State Corporation’s wholly owned subsidiary, South State Bank, a South Carolina banking corporation. Leases (Topic 842) and Method of Adoption On January 1, 2019, we adopted the requirements of Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842). Topic 842 was subsequently amended by ASU No. 2018-01, Land Easement Practical Expedient for Transition to Topic 842; ASU No. 2018-10, Codification Improvements to Topic 842, Leases; ASU No. 2018-11, Targeted Improvements; and ASU No. 2019-01, Codification Improvements to Topic 842 Leases. The purpose of the update was to increase transparency and comparability between organizations that enter into lease agreements. The key difference between the previous guidance and the update is the recognition of a right-of-use asset (ROU) and lease liability on the statement of financial position for those leases previously classified as operating leases under the old guidance. Accounting Standards Codification (“ASC”) Topic 842 defines a lease as a contract, or part of a contract, that conveys the right to control the use of identified property, plant, or equipment (an identified asset) for a period of time in exchange for consideration. In applying this standard, we reviewed our material contracts to determine if they included a lease by this new definition and did not identify any new leases. Our lease agreements in which ASC Topic 842 has been applied are primarily for real estate properties, including retail branch locations, operations and administration locations and stand-alone ATM locations. These leases have lease terms from greater than 12 months to leases with options of more than 24 years. Related to lease payment terms, some are fixed payments or based on a fixed annual increases while others are variable and the annual increases are based on market rates. We performed an analysis on equipment leases for the implementation of ASC Topic 842 and determined the number and dollar amount of our equipment leases was not material. A modified retrospective transition approach is required, applying the new standard to all leases existing at the date of initial application. An entity may choose to use either (1) its effective date or (2) the beginning of the earliest comparative period presented in the financial statements as its date of initial application. We chose the transition method of adoption provided by ASU 2018-11, Leases (Topic 842) – Targeted Improvements, where we initially apply the new lease standard at the effective date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption if applicable. Therefore, we will apply this standard to all existing leases as of the adoption date of January 1, 2019, recording a ROU asset and a lease liability in an equal amount. We did not have a cumulative-effect adjustment to the opening balance of retained earnings. With this transition method, we will not have to restate comparative prior periods presented in the financial statements related to ASC Topic 842, but will present comparative prior periods disclosures using the previous accounting guidance for leases. This adoption method is considered a change in accounting principle requiring additional disclosure of the nature of and reason for the change, which is solely a result of the adoption of the required standard. ASC Topic 842 provides a package of practical expedients in applying the lease standard that had to be chosen at the date of adoption. We chose to elect this package of practical expedients. With this election, we do not have to reassess whether any expired or existing contracts are or contain a lease, do not have to reassess the classification of any expired or existing leases, do not have to separate lease and non-lease components and can account for both as a single lease component, and do not have to reassess initial direct costs or cash incentives for any existing leases due to immateriality. In addition, we chose not to apply ASC Topic 842 to short-term leases (leases with terms of 12 months or less) and not to record an underlying ROU asset or lease liability based on the uncertainty around the renewal of these leases. We will recognize lease expense for such leases on a straight-line basis over the lease term. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. We determined that we do not have any leases classified as finance leases and that all of our leases are operating leases. ROU assets and liabilities for operating leases are recognized at commencement date based on present value of lease payments not yet paid, discounted using the discount rate for the lease at the lease commencement date over the lease term. For operating leases, lease expense is determined by the sum of the lease payments to be recognized on a straight-line basis over the lease term. Based on the transition method that we chose to follow, the commencement date of the lease term for all existing leases is January 1, 2019. The lease term used for the calculation of the initial ROU asset and lease liability will include the initial lease term in addition to any renewal options or termination costs in the lease that we think are reasonably certain to be exercised or incurred. We received input from several levels of management and our corporate real estate department in determining which options were reasonably certain to be exercised. A discount rate is also needed in the calculation of the initial ROU assets and lease liability. ASC Topic 842 requires that the implicit rate within the lease agreement be used if available. If not available, we should use its incremental borrowing rate in effect at the time of the lease commencement date. We looked at the incremental borrowing rate from several of our borrowing sources to determine an average rate to be used in the calculation of the initial ROU asset and lease liability. We also considered the term of the borrowings as they relate to the terms of the leases. The adoption of the new standard had a material impact on our consolidated balance sheet, with the recording of ROU asset and lease liability of $82.2 million at the commencement date of January 1, 2019. We did not have a cumulative-effect adjustment to the opening balance of retained earnings at commencement. As of March 31, 2019, we had ROU assets of $82.8 million recorded within premises and equipment on the balance sheet and a lease liability of $83.0 million recorded within other liabilities on the balance sheet. The adoption of ASC Topic 842 did not have a material impact on our consolidated income statement. Revenue from Contracts with Customers (Topic 606) and Method of Adoption On January 1, 2018, we adopted the requirements of ASU 2014-09, Revenue from Contracts with Customers (“Topic 606”). The majority of our revenue is derived primarily from interest income from receivables (loans) and securities. Other revenues are derived from fees received in connection with deposit accounts, mortgage banking activities including gains from the sale of loans and loan origination fees, and trust and investment advisory services. The core principle of the new standard is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. We adopted Topic 606 using the retrospective transition approach which requires restatement of prior periods. We selected this method even though there were no material changes in the timing of revenue recognition due to the fact that Topic 606 requires us to report network costs associated with debit card and ATM transactions netted against the related fees from such transactions. Previously, such network costs were reported as a component of other noninterest expense. We did restate prior periods for this reclassification. For the three months ended March 31, 2019, gross interchange and debit card transaction fees totaled $5.5 million while related network costs totaled $2.9 million. On a net basis we reported $2.6 million as interchange and debit card transactions fees in the accompanying Consolidated Statements of Income as noninterest income for the three months ended March 31, 2019. We also made this reclassification for the comparable period in 2018. For the three months ended March 31, 2018, gross interchange and debit card transaction fees totaled $10.6 million while related network costs totaled $3.0 million. On a net basis we reported $7.6 million as net interchange and debit card transactions fees as noninterest income for the three months ended March 31, 2018. This adoption method is considered a change in accounting principle requiring additional disclosure of the nature of and reason for the change, which is solely a result of the adoption of the required standard. When applying the retrospective approach under Topic 606, we elected, as a practical expedient, to apply the revenue standard only to contracts that are not completed as of January 1, 2018. A completed contract is considered to be a contract for which all (or substantially all) of the revenue was recognized in accordance with revenue guidance that was in effect before January 1, 2018. There were no uncompleted contracts as of January 1, 2018 for which application of the new standard required an adjustment to retained earnings. The following disclosures related to Topic 606 involve income derived from contracts with customers. Within the scope of Topic 606, we maintain contracts to provide services, primarily for investment advisory and/or custody of assets. Through our wholly-owned subsidiaries, the Bank and South State Advisory, Inc., we contract with our customers to perform IRA, Trust, and/or Custody and Agency advisory services. Total revenue recognized from these contracts with customers was $7.3 million and $7.5 million, respectively, for the three months ended March 31, 2019 and 2018. The Bank contracts with our customers to perform deposit account services. Total revenue recognized from these contracts with customers is $18.1 million and $25.8 million, respectively, for the three months ended March 31, 2019 and 2018. Due to the nature of our relationship with the customers that we provide services, we do not incur costs to obtain contracts and there are no material incremental costs to fulfill these contracts that should be capitalized. Disaggregation of Revenue - Our portfolio of services provided to our customers consists of approximately 816,000 active contracts at March 31, 2019 compared to approximately 791,000 at March 31, 2018. We have disaggregated revenue according to timing of the transfer of service. Total revenue derived from contracts in which services are transferred at a point in time was $24.1 million and $33.8 million, respectively, for the three months ended March 31, 2019 and 2018. Total revenue derived from contracts in which services are transferred over time was $5.0 million and $4.8 million, respectively, for the three months ended March 31, 2019 and 2018. Revenue is recognized as the services are provided to the customers. Economic factors impacting the customers could affect the nature, amount, and timing of these cash flows, as unfavorable economic conditions could impair the customers’ ability to provide payment for services. This risk is mitigated as we generally deduct payments from customers’ accounts as services are rendered. Contract Balances - The timing of revenue recognition, billings, and cash collections results in billed accounts receivable on our balance sheet. Most contracts call for payment by a charge or deduction to the respective customer account but there are some that require a receipt of payment from the customer. For fee per transaction contracts, the customers are billed as the transactions are processed. For hourly rate and monthly service contracts related to trust and some investment revenues, the customers are billed monthly (generally as a percentage basis point of the market value of the investment account). In some cases, specific to South State Advisory, Inc., customers are billed in advance for quarterly services to be performed based on the past quarter’s average account balance. These do create contract liabilities or deferred revenue, as the customers pay in advance for service. Neither the contract liabilities nor the accounts receivables balances are material to our balance sheet. Performance Obligations - A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in Topic 606. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. The performance obligations for these contracts are satisfied as the service is provided to the customer (either over time or at a point in time). The payment terms of the contracts are typically based on a basis point percentage of the investment account market value, fee per hour of service, or fee for service incurred. There are no significant financing components in the contracts. Excluding deposit services revenues which are mostly billed at a point in time as a fee for services incurred, all other contracts within the scope of Topic 606 contain variable consideration in that fees earned are derived from market values of accounts or from hours worked for services performed which determines the amount of consideration to which we are entitled. The variability is resolved when the hours are incurred or services are provided. The contracts do not include obligations for returns, refunds, or warranties. The contracts are specific to the amounts owed to the Company for services performed during a period should the contracts be terminated. Significant Judgments - All of the contracts create performance obligations that are satisfied at a point in time excluding the contracts billed in advance through South State Advisory, Inc. and some immaterial deposit revenues. Revenue is recognized as services are billed to the customers. Variable consideration does exist for contracts related to our trust and investment services as revenues are based on market values and services performed. We have adopted the right-to-invoice practical expedient for trust management contracts through the Bank which we contract with our customers to perform IRA, trust, and/or custody services.

Recent Accounting and Regulator

Recent Accounting and Regulatory Pronouncements	3 Months Ended
	Mar. 31, 2019
Recent Accounting and Regulatory Pronouncements
Recent Accounting and Regulatory Pronouncements	Note 3 — Recent Accounting and Regulatory Pronouncements Accounting Standards Adopted in 2019 In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASC Topic 842 related to leases. ASC Topic 842 applies a right-of-use, which we refer to herein as ROU, model that requires a lessee to record, for all leases with a lease term of more than 12 months, an asset representing its right to use the underlying asset and a liability to make lease payments. For leases with a term of 12 months or less, a practical expedient is available whereby a lessee may elect, by class of underlying asset, not to recognize an ROU asset or lease liability. At inception, lessees must classify all leases as either finance or operating based on five criteria. Balance sheet recognition of finance and operating leases is similar, but the pattern of expense recognition in the income statement, as well as the effect on the statement of cash flows, differs depending on the lease classification. In July 2018, ASU 2018-11 - Targeted Improvements - Leases (Topic 842) (“ASU 2018-11”) was issued which provided targeted improvements related to ASC Topic 842. ASU 2018-11 updates the new lease standard ASC Topic 842 by providing another transition method in addition to the existing transition method by allowing entities to initially apply the new leases standard at the adoption date instead of at the beginning of the earliest period presented in the financial statements as required in the original pronouncement. ASU 2018-11 also provides updated guidance for lessors related to separating lease and nonlease components in a contract and allocating the consideration in the contract to the separate components. In December 2018, the FASB issued ASU No. 2018-20, Leases (Topic 842): Narrow-Scope Improvements for Lessors (“ASU 2018-20”) . ASU 2018-20 updates the new lease standard ASC Topic 842 by addressing several issues related to lessors which should reduce lessors’ implementation and ongoing costs related to the new lease standard. In March 2019, the FASB issued ASU No. 2019-01, Leases (Topic 842): Codification Improvements (“ASU 2019-01”) . ASU 2019-01 provides clarification on several issues related to ASC Topic 842. None of these issues had a material effect on our financial statements. For public business entities, the amendments in ASU 2016-02, ASU 2018-11, ASU 2018-20 and ASU 2019-01 are effective for interim and annual periods beginning after December 15, 2018. In transition, lessees and lessors have the choice to recognize and measure leases at the beginning of the earliest period presented in financials using a modified retrospective approach or to allow the entity to recognize and measure leases as of the adoption date and not in comparative periods. We chose the option to recognize and measure leases as of the adoption date and not in comparative periods. See Note 2 – Summary of Significant Accounting Policies and Note 7 – Leases for further discussion around the adoption of these standards related to leases. On January 1, 2019, we recorded a ROU asset and a lease liability of approximately $82.2 million. The guidance did not have a material impact on our statement of operations. In October 2018, the FASB issued ASU No. 2018-16, Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes (Derivatives and Hedging - Topic 815) (“ASU 2018-16”) . The amendments in this ASU permit the OIS rate based on SOFR as a U.S. benchmark interest rate. Including the OIS rate based on SOFR as an eligible benchmark interest rate during the early stages of the marketplace transition will facilitate the London Interbank Offered Rate (LIBOR) to SOFR transition and provide sufficient lead time for entities to prepare for changes to interest rate risk hedging strategies for both risk management and hedge accounting purposes. The guidance is effective for public companies for annual periods beginning on or after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted. All transition requirements and elections should be applied to hedging relationships existing on the date of adoption. This guidance became effective on January 1, 2019 and we determined that the implementation of this standard did not have a material impact to our consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-15, Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (Subtopic 350-40) (“ASU 2018-15”) . This ASU clarifies certain aspects of ASU 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement , which was issued in April 2015. Specifically, ASU 2018-15 “align[s] the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license).” This ASU does not affect the accounting for the service element of a hosting arrangement that is a service contract. An entity would expense the capitalized implementation costs related to a hosting arrangement that is a service contract over the hosting arrangement’s term, which comprises the arrangement’s noncancelable term and any renewal options whose exercise is reasonably certain. The expense would be presented in the same line item in the statement of income as that in which the fee associated with the hosting arrangement is presented. For public business entities, the amendments in ASU 2018-15 are effective for interim and annual periods beginning after December 15, 2019 and an entity has the option of using either a retrospective or prospective transition method. Early adoption is permitted. We are early adopting this standard as of January 1, 2019, but do not believe it will have a material impact on our consolidated financial statements. There were no capitalized costs in the first quarter of 2019, but we do expect to begin to capitalize costs starting in the second quarter of 2019. In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities (“ASU 2017-12”). ASU 2017-12 amends ASU 2018-16 to better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. These amendments will improve the transparency of information about an entity’s risk management activities and simplify the application of hedge accounting. The guidance is effective for public companies for annual periods beginning on or after December 15, 2018 and interim periods within those fiscal years. All transition requirements and elections should be applied to hedging relationships existing on the date of adoption. This guidance became effective on January 1, 2019 and we determined that the implementation of this standard did not have a material impact to our consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-08, Receivables-Nonrefundable Fees and Other Cost (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities; (“ASU 2017-08”). ASU 2017-08 shortens the amortization period of the premium for certain callable debt securities, from the contractual maturity date to the earliest call date. The amendments do not require an accounting change for securities held at a discount; an entity will continue to amortize to the contractual maturity date the discount related to callable debt securities. The amendments apply to the amortization of premiums on callable debt securities with explicit, noncontingent call features that are callable at fixed prices on preset dates. For public business entities, ASU 2017-08 is effective in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. For entities other than public business entities, the amendments are effective in fiscal years beginning after December 15, 2019 and in interim periods in fiscal years beginning after December 15, 2020. Early adoption is permitted for all entities, including in an interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the amendments are adopted. This guidance became effective on January 1, 2019 and we determined that the implementation of this standard did not have a material impact to our consolidated financial statements. Accounting Standards Adopted in 2018 In February 2018, the FASB issued ASU No. 2018-03, Technical Corrections and Improvements to Financial Instruments-Overall (Subtopic 825-10) (“ASU 2018-03”). ASU 2018-03 updates the new financial instruments standard by clarifying issues that arose from ASU 2016-01, but does not change the core principle of the new standard. The issues addressed in this ASU include: (1) Equity securities without a readily determinable fair value-discontinuation, (2) Equity securities without a readily determinable fair value-adjustments, (3) Forward contracts and purchased options, (4) Presentation requirements for certain fair value option liabilities, (5) Fair value option liabilities denominated in a foreign currency, (6) Transition guidance for equity securities without a readily determinable fair value, and (7) Transition and open effective date information. For public business entities, the amendments in ASU 2018-03 and ASU 2016-01 are effective for interim and annual periods beginning after December 15, 2017. An entity should apply the amendments by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendments related to equity securities without readily determinable fair values (including disclosure requirements) should be applied prospectively to equity investments that exist as of the date of adoption of ASU 2018-03 and ASU 2016-01. This guidance became effective on January 1, 2018 and we determined that the implementation of this standard did not have a material impact to our consolidated financial statements. In February 2018, the FASB issued ASU No. 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income (“ASU 2018-02”). ASU 2018-02 amends ASC Topic 220 and allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017 (the “Tax Reform Act”). Consequently, this amendment eliminates the stranded tax effects resulting from the Tax Reform Act and will improve the usefulness of information reported to financial statement users. However, because the amendments only relate to the reclassification of the income tax effects of the Tax Reform Act, the underlying guidance that requires that the effects of the change in tax laws or rates be included in income from continuing operations is not affected. The guidance is effective for public companies for annual periods beginning on or after December 15, 2018 and interim periods within those fiscal years. Early adoption was permitted, including adoption in any interim period, (1) for public business entities for reporting periods for which financial statements have not yet been issued and (2) for all other entities for reporting periods for which financial statements have not yet been made available for issuance. This amendment should be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in U.S. federal corporate income tax rate in the Tax Reform Act is recognized. We early adopted this amendment in the first quarter of 2018 and reclassified $2.9 million from accumulated other comprehensive income to retained earnings for the stranded tax effects resulting from the Tax Reform Act. In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting (“ASU 2017-09”). ASU 2017-09 provides clarity by offering guidance on the scope of modification accounting for share-based payment awards and gives direction on which changes to the terms or conditions of these awards require an entity to apply modification accounting. Under the new guidance, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or a liability) changes as a result of the change in terms or conditions. The guidance is effective prospectively for all companies for annual periods beginning on or after December 15, 2017. We adopted this standard in the first quarter of 2018 and determined that this guidance did not have a material impact on our consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (“ASU 2017-07”). ASU 2017-07 applies to any employer that sponsors a defined benefit pension plan, other postretirement benefit plan, or other types of benefits accounted for under Topic 715. The amendments require that an employer disaggregate the service cost component from the other components of net benefit cost, as follows (1) service cost must be presented in the same line item(s) as other employee compensation costs, which costs are generally included within income from continuing operations, but in some cases may be eligible for capitalization, (2) all other components of net benefit cost must be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented, and (3) the amendments permit capitalizing only the service cost component of net benefit cost, assuming such costs meet the criteria required for capitalization by other GAAP , rather than total net benefit cost which has been permitted under prior GAAP. The guidance is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those years. The amendments should be adopted prospectively and allows a practical expedient that permits an employer to use the amounts disclosed in its pension and other postretirement benefit plan note for the prior periods to apply the retrospective presentation requirements. We adopted this standard in the first quarter of 2018 and determined that this guidance did not have a material impact on our consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business (“ASU 2017-01”). These amendments are intended to clarify the definition of a business to assist companies and other reporting entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 requires an entity to evaluate if substantially all of the fair value of the gross assets acquired are concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities is not a business. The guidance also requires a business to include at least one substantive process and narrows the definition of outputs by more closely aligning it with how outputs are described in ASC Topic 606. The guidance is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those years. We adopted this standard in the first quarter of 2018 and determined that this guidance did not have a material impact on our consolidated financial statements. In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers (“ASU 2016-20”). ASU 2016-20 updates the new revenue standard by clarifying issues that arose from ASU 2014-09, but does not change the core principle of the new standard. The issues addressed in this ASU include: (1) Loan guarantee fees, (2) Impairment testing of contract costs, (3) Interaction of impairment testing with guidance in other topics, (4) Provisions for losses on construction-type and production-type contracts, (5) Scope of topic 606, (6) Disclosure of remaining performance obligations, (7) Disclosure of prior-period performance obligations, (8) Contract modifications, (9) Contract asset vs. receivable, (10) Refund liability, (11) Advertising costs, (12) Fixed-odds wagering contracts in the casino industry, (13) Cost capitalization for advisors to private funds and public funds. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017. The amendments can be applied retrospectively to each prior reporting period or retrospectively with the cumulative effect of initially applying this new guidance recognized at the date of initial application. Our revenue includes net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and noninterest income. ASU 2016-20, ASU 2016-08 and ASU 2014-09 became effective on January 1, 2018 and we refined our disclosures around the standard in the first quarter of 2018. See Note 2 – Summary of Significant Accounting Policies for additional information. We determined that there is no material change on how we recognize our revenue streams and the adoption of these standards did not have a material impact on our consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15 , Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”). ASU 2016-15 addresses eight classification issues related to the statement of cash flows: Debt prepayment or debt extinguishment costs; Settlement of zero-coupon bonds; Contingent consideration payments made after a business combination; Proceeds from the settlement of insurance claims; Proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; Distributions received from equity method investees; Beneficial interests in securitization transactions; and Separately identifiable cash flows and application of the predominance principle. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted. Entities will apply the standard’s provisions using a retrospective transition method to each period presented. We adopted this standard in the first quarter of 2018 and determined that this guidance did not have a material impact on our consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent considerations (Reporting Revenue Gross versus Net) (“ASU 2016-08”). ASU 2016-08 updates the new revenue standard by clarifying the principal versus agent implementation guidance, but does not change the core principle of the new standard. The updates to the principal versus agent guidance: (i) require an entity to determine whether it is a principal or an agent for each distinct good or service (or a distinct bundle of goods or services) to be provided to the customer; (ii) illustrate how an entity that is a principal might apply the control principle to goods, services, or rights to services, when another party is involved in providing goods or services to a customer and (iii) Clarify that the purpose of certain specific control indicators is to support or assist in the assessment of whether an entity controls a good or service before it is transferred to the customer, provide more specific guidance on how the indicators should be considered, and clarify that their relevance will vary depending on the facts and circumstances. For public business entities, the effective date and transition requirements for these amendments are the same as the effective date and transition requirements of ASU 2014-09 which is effective for interim and annual periods beginning after December 15, 2017. The amendments can be applied retrospectively to each prior reporting period or retrospectively with the cumulative effect of initially applying this new guidance recognized at the date of initial application. Our revenue includes net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and noninterest income. ASU 2016-20, ASU 2016-08 and ASU 2014-09 became effective on January 1, 2018 and we refined its disclosures around the standard in the first quarter of 2018. We determined that there is no material change on how we recognize our revenue streams and the adoption of these standards did not have a material impact on our consolidated financial statements, other than the required disclosures and the reclassification of interchange costs from noninterest expense to noninterest income on the Consolidated Statement of Income which we applied retrospectively to each prior reporting period. See further discussion in Note 2 – Summary of Significant Accounting Policies. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10); Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This update is intended to improve the recognition and measurement of financial instruments and it requires an entity to: (i) measure equity investments at fair value through net income, with certain exceptions; (ii) present in other comprehensive income the changes in instrument-specific credit risk for financial liabilities measured using the fair value option; (iii) present financial assets and financial liabilities by measurement category and form of financial asset; (iv) calculate the fair value of financial instruments for disclosure purposes based on an exit price; and (v) assess a valuation allowance on deferred tax assets related to unrealized losses of AFS debt securities in combination with other deferred tax assets. ASU 2016-01 also provides an election to subsequently measure certain nonmarketable equity investments at cost less any impairment and adjusted for certain observable price changes and requires a qualitative impairment assessment of such equity investments and amends certain fair value disclosure requirements. For public business entities, the amendments in ASU 2016-01 are effective for interim and annual periods beginning after December 15, 2017. An entity should apply the amendments by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendments related to equity securities without readily determinable fair values (including disclosure requirements) should be applied prospectively to equity investments that exist as of the date of adoption of the ASU 2016-01. This guidance became effective on January 1, 2018 and we determined that the implementation of this standard did not have a material impact to our consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, Topic 606 (“ASU 2014-09”). The new standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, companies will need to use more judgment and make more estimates than under existing guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. In August of 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers, Topic 606: Deferral of the Effective Date, deferring the effective date of ASU 2014-09 until annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. The amendments can be applied retrospectively to each prior reporting period or retrospectively with the cumulative effect of initially applying this new guidance recognized at the date of initial application. Our revenue includes net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and noninterest income. ASU 2016-20, ASU 2016-08 and ASU 2014-09 became effective on January 1, 2018 and we refined our disclosures around the standard in the first quarter of 2018. See Note 2 – Summary of Significant Accounting Policies for additional information. We determined that there is no material change on how we recognize our revenue streams, other than the required disclosures and the reclassification of interchange costs from noninterest expense to noninterest income on the Consolidated Statement of Income which we applied retrospectively to each prior reporting period. Issued But Not Yet Adopted Accounting Standards In August 2018, the FASB issued ASU No. 2018-14, Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans (Subtopic 715-20) (“ASU 2018-14”) . ASU 2018-14 amends ASC 715-20 to add, remove, and clarify disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. For public business entities, ASU 2018-14 is effective for fiscal years ending after December 15, 2020 and requires entities to apply the amendment on a retrospective basis. Early adoption is permitted. At this point in time, we do not expect that this guidance will have a material impact on our consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-13, Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement (Topic 820) (“ASU 2018-13”) . ASU 2018-13 removes, modifies, and adds certain disclosure requirements in ASC 820 related to Fair Value Measurement on the basis of the concepts in the FASB Concepts Statement Conceptual Framework for Financial Reporting — Chapter 8: Notes to Financial Statements . ASU 2018-13 is effective for all entities for fiscal years beginning after December 15, 2019, including interim periods therein. Early adoption is permitted upon issuance of this ASU, including in any interim period for which financial statements have not yet been issued or made available for issuance. Entities making this election are permitted to early adopt the eliminated or modified disclosure requirements and delay the adoption of all the new disclosure requirements until their effective date. The ASU requires application of the prospective method of transition (for only the most recent interim or annual period presented in the initial fiscal year of adoption) to the new disclosure requirement additions. The ASU also requires prospective application to any modifications to disclosures made because of the change to the requirements for the narrative description of measurement uncertainty. The effects of all other amendments made by the ASU must be applied retrospectively to all periods presented. The Company is still assessing the impact of this new guidance, but does not believe it will have a material impact on the Company’s consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04, Intangible-Goodwill and other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). ASU 2017-04 simplifies the accounting for goodwill impairment for all entities by requiring impairment charges to be based on the first step in today’s two-step impairment test under ASC Topic 350 and eliminating Step 2 from the goodwill impairment test. As amended, the goodwill impairment test will consist of one step comparing the fair value of a reporting unit with its carrying amount. An entity should recognize a goodwill impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The guidance is effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those years. The amendments should be adopted prospectively and early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We are still assessing the impact of this new guidance, but at this point in time, do not believe it will have a material impact on our consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13 , Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 requires an entity to utilize a new impairment model known as the current expected credit loss (“CECL”) model to estimate its lifetime “expected credit loss” and record an allowance that, when deducted from the amortized cost basis of the financial asset, presents the net amount expected to be collected on the financial asset. The CECL model is expected to result in earlier recognition of credit losses for loans, investment securities portfolio, and purchased financial assets with credit deterioration. ASU 2016-13 also will require enhanced disclosures. The new guidance is effective for interim and annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. A cross-functional working group comprised of individuals from credit administration, risk management, accounting and finance, information technology, among others are in place implementing and developing the data, forecast, processes, and portfolio segmentation that will be used in the models that will estimate the expected credit loss for each loan segment. We also contracted with a third party vendor solution to assist us in the application and analysis of ASU 2016-13 in aggregating the results of the models and provide macroeconomic forecast for the markets served relative to each loan segment. We are currently unable to reasonably estimate the impact of adopting ASU 2016-13, and it will be influenced by the composition, characteristics and quality of our loan and securities portfolio, as well as the economic conditions and forecasts as of each reporting period. These economic conditions and forecasts could be significantly different in future periods.

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2019
Investment Securities
Investment Securities	Note 4 — Investment Securities The following is the amortized cost and fair value of investment securities held to maturity: Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value March 31, 2019: State and municipal obligations $ — $ — $ — $ — December 31, 2018: State and municipal obligations $ — $ — $ — $ — March 31, 2018: State and municipal obligations $ 1,274 $ 10 $ — $ 1,284 The following is the amortized cost and fair value of investment securities available for sale: Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value March 31, 2019: Government-sponsored entities debt* $ 65,567 $ 441 $ (304) $ 65,704 State and municipal obligations 190,302 3,170 (54) 193,418 Mortgage-backed securities** 1,216,669 1,991 (11,533) 1,207,127 $ 1,472,538 $ 5,602 $ (11,891) $ 1,466,249 December 31, 2018: Government-sponsored entities debt* $ 48,982 $ 21 $ (752) $ 48,251 State and municipal obligations 200,184 1,709 (1,125) 200,768 Mortgage-backed securities** 1,291,484 697 (24,133) 1,268,048 $ 1,540,650 $ 2,427 $ (26,010) $ 1,517,067 March 31, 2018: Government-sponsored entities debt* $ 91,483 $ — $ (1,737) $ 89,746 State and municipal obligations 224,994 2,232 (1,540) 225,686 Mortgage-backed securities** 1,353,356 248 (28,199) 1,325,405 $ 1,669,833 $ 2,480 $ (31,476) $ 1,640,837 * - Our government-sponsored entities holdings are comprised of debt securities offered by Federal Home Loan Mortgage Corporation (“FHLMC”) or Freddie Mac, Federal National Mortgage Association (“FNMA”) or Fannie Mae, Federal Home Loan Bank (“FHLB”), and Federal Farm Credit Banks (“FFCB”). ** - All of the mortgage-backed securities are issued by government-sponsored entities; there are no private-label holdings. Also, included in our mortgage-backed securities are debt securities offered by the Small Business Administration (“SBA”), which have the full faith and credit backing of the United States Government. The following is the amortized cost and carrying value of other investment securities: Carrying (Dollars in thousands) Value March 31, 2019: Federal Home Loan Bank stock $ 34,544 Investment in unconsolidated subsidiaries 3,563 Other nonmarketable investment securities 2,517 $ 40,624 December 31, 2018: Federal Home Loan Bank stock $ 19,524 Investment in unconsolidated subsidiaries 3,563 Other nonmarketable investment securities 2,517 $ 25,604 March 31, 2018: Federal Home Loan Bank stock $ 17,399 Investment in unconsolidated subsidiaries 3,563 Other nonmarketable investment securities 2,517 $ 23,479 Our other investment securities consist of non-marketable equity securities that have no readily determinable market value. Accordingly, when evaluating these securities for impairment, management considers the ultimate recoverability of the par value rather than recognizing temporary declines in value. As of March 31, 2019, we determined that there was no impairment on its other investment securities. The amortized cost and fair value of debt and equity securities at March 31, 2019 by contractual maturity are detailed below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without prepayment penalties. Securities Securities Held to Maturity Available for Sale Amortized Fair Amortized Fair (Dollars in thousands) Cost Value Cost Value Due in one year or less $ — $ — $ 9,437 $ 9,415 Due after one year through five years — — 74,473 74,860 Due after five years through ten years — — 361,457 360,630 Due after ten years — — 1,027,171 1,021,344 $ — $ — $ 1,472,538 $ 1,466,249 Information pertaining to our securities with gross unrealized losses at March 31, 2019, December 31, 2018 and March 31, 2018, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position is as follows: Less Than Twelve Months Twelve Months or More Gross Gross Unrealized Fair Unrealized Fair (Dollars in thousands) Losses Value Losses Value March 31, 2019: Securities Available for Sale Government-sponsored entities debt $ 49 $ 11,687 $ 255 $ 30,490 State and municipal obligations — — 54 10,310 Mortgage-backed securities 726 110,389 10,807 826,714 $ 775 $ 122,076 $ 11,116 $ 867,514 December 31, 2018: Securities Available for Sale Government-sponsored entities debt $ 100 $ 10,571 $ 652 $ 32,959 State and municipal obligations 760 40,387 365 14,231 Mortgage-backed securities 5,182 405,055 18,951 755,223 $ 6,042 $ 456,013 $ 19,968 $ 802,413 March 31, 2018: Securities Available for Sale Government-sponsored entities debt $ 918 $ 34,712 $ 819 $ 55,034 State and municipal obligations 1,523 69,118 17 724 Mortgage-backed securities 17,030 938,924 11,169 304,731 $ 19,471 $ 1,042,754 $ 12,005 $ 360,489 Management evaluates securities for other-than-temporary impairment (“OTTI”) on at least a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. Consideration is given to (1) the financial condition and near-term prospects of the issuer, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) our intent and ability to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more-likely-than-not that we will be required to sell the debt security prior to recovering its fair value, and (5) the anticipated outlook for changes in the general level of interest rates. In analyzing an issuer’s financial condition, management considers whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, the results of reviews of the issuer’s financial condition, and the issuer’s anticipated ability to pay the contractual cash flows of the investments. All debt securities available for sale in an unrealized loss position as of March 31, 2019 continue to perform as scheduled. As part of our evaluation of its intent and ability to hold investments for a period of time sufficient to allow for any anticipated recovery in the market, we consider our investment strategy, cash flow needs, liquidity position, capital adequacy and interest rate risk position. We do not currently intend to sell the securities within the portfolio and it is not more-likely-than-not that we will be required to sell the debt securities; therefore, management does not consider these investments to be other-than-temporarily impaired at March 31, 2019. Management continues to monitor all of our securities with a high degree of scrutiny. There can be no assurance that we will not conclude in future periods that conditions existing at that time indicate some or all of its securities may be sold or are other than temporarily impaired, which would require a charge to earnings in such periods.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2019
Loans and Allowance for Loan Losses
Loans and Allowance for Loan Losses	Note 5 — Loans and Allowance for Loan Losses The following is a summary of non-acquired loans: March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Non-acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 810,551 $ 841,445 $ 871,141 Commercial non-owner occupied 1,615,416 1,415,551 1,050,924 Total commercial non-owner occupied real estate 2,425,967 2,256,996 1,922,065 Consumer real estate: Consumer owner occupied 2,005,314 1,936,265 1,612,501 Home equity loans 508,326 495,148 448,582 Total consumer real estate 2,513,640 2,431,413 2,061,083 Commercial owner occupied real estate 1,601,360 1,517,551 1,296,738 Commercial and industrial 1,072,070 1,054,952 872,363 Other income producing property 214,235 214,353 198,684 Consumer 465,117 448,664 390,784 Other loans 18,224 9,357 20,795 Total non-acquired loans 8,310,613 7,933,286 6,762,512 Less allowance for loan losses (52,008) (51,194) (45,203) Non-acquired loans, net $ 8,258,605 $ 7,882,092 $ 6,717,309 The following is a summary of acquired non-credit impaired loans accounted for under FASB ASC Topic 310-20, net of related discount: March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 FASB ASC Topic 310-20 acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 113,572 $ 165,070 $ 349,532 Commercial non-owner occupied 629,394 679,253 783,466 Total commercial non-owner occupied real estate 742,966 844,323 1,132,998 Consumer real estate: Consumer owner occupied 610,376 628,813 683,614 Home equity loans 225,278 242,425 295,721 Total consumer real estate 835,654 871,238 979,335 Commercial owner occupied real estate 400,658 421,841 498,541 Commercial and industrial 173,840 212,537 344,171 Other income producing property 120,696 133,110 186,091 Consumer 104,923 111,777 133,802 Total FASB ASC Topic 310-20 acquired loans $ 2,378,737 $ 2,594,826 $ 3,274,938 The unamortized discount related to the acquired non-credit impaired loans totaled $30.2 million, $33.4 million, and $55.3 million at March 31, 2019, December 31, 2018, and March 31, 2018, respectively. In accordance with FASB ASC Topic 310-30, we aggregated acquired loans that have common risk characteristics into pools of loan categories as described in the table below. The following is a summary of acquired credit impaired loans accounted for under FASB ASC Topic 310-30 (identified as credit impaired at the time of acquisition), net of related discount: March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 FASB ASC Topic 310-30 acquired loans: Commercial real estate $ 173,707 $ 196,764 $ 233,277 Commercial real estate—construction and development 32,257 32,942 46,219 Residential real estate 199,701 207,482 248,766 Consumer 40,182 42,492 48,801 Commercial and industrial 10,925 10,043 24,295 Total FASB ASC Topic 310-30 acquired loans 456,772 489,723 601,358 Less allowance for loan losses (4,514) (4,604) (4,084) FASB ASC Topic 310-30 acquired loans, net $ 452,258 $ 485,119 $ 597,274 The table below reflects refined contractual loan payments (principal and interest), estimates of the amounts not expected to be collected (non-accretable difference), accretable yield (interest income recognized over time), and the resulting fair values at the acquisition date for Park Sterling Corporation (“PSC”) (November 30, 2017) for loans accounted for using FASB ASC Topic 310-30. During the second quarter of 2018, the initial fair value of loans at acquisition were adjusted to reflect movement of loans between the ASC Topic 310-20 portfolio and the ASC Topic 310-30 portfolio and the movement in interest rates from the initial valuation. November 30, 2017 Loans Impaired (Dollars in thousands) at Acquisition Contractual principal and interest $ 113,584 Non-accretable difference (27,248) Cash flows expected to be collected 86,336 Accretable difference (7,369) Carrying value $ 78,967 The table above excludes $2.1 billion ($2.2 billion in contractual principal less a $46.5 million fair value adjustment) in acquired loans at fair value that were identified as either performing with no discount related to the credit or as revolving lines of credit (commercial or consumer) as of the acquisition date and will be accounted for under FASB ASC Topic 310-20. The table below reflects refined contractual loan payments (principal and interest), estimates of the amounts not expected to be collected (non-accretable difference), accretable yield (interest income recognized over time), and the resulting fair values at the acquisition date for Southeastern Bank Financial Corporation (“SBFC”) (January 3, 2017) for loans accounted for using FASB ASC Topic 310-30. During the third quarter of 2017, the initial fair values of the acquired loan portfolios were adjusted to reflect movement of loans between the ASC Topic 310-20 portfolio and the ASC Topic 310-30 portfolio . January 3, 2017 Loans Impaired (Dollars in thousands) at Acquisition Contractual principal and interest $ 78,963 Non-accretable difference (13,072) Cash flows expected to be collected 65,891 Accretable difference (4,910) Carrying value $ 60,981 The table above excludes $986.5 million ($1.0 billion in contractual principal less a $18.8 million fair value adjustment) in acquired loans at fair value that were identified as either performing with no discount related to the credit or as revolving lines of credit (commercial or consumer) as of the acquisition date and will be accounted for under FASB ASC Topic 310-20. Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values of acquired credit impaired loans as of March 31, 2019, December 31, 2018 and March 31, 2018 are as follows: March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Contractual principal and interest $ 583,518 $ 626,691 $ 760,973 Non-accretable difference (24,282) (24,818) (33,841) Cash flows expected to be collected 559,236 601,873 727,132 Accretable yield (106,978) (116,754) (129,858) Carrying value $ 452,258 $ 485,119 $ 597,274 Income on acquired credit impaired loans that are not impaired at the acquisition date is recognized in the same manner as loans impaired at the acquisition date. A portion of the fair value discount on acquired non-impaired loans has been ascribed as an accretable yield that is accreted into interest income over the estimated remaining life of the loans. The remaining nonaccretable difference represents cash flows not expected to be collected. The following are changes in the carrying value of acquired credit impaired loans: Three Months Ended March 31, (Dollars in thousands) 2019 2018 Balance at beginning of period $ 485,119 $ 618,803 Net reductions for payments, foreclosures, and accretion (32,951) (22,072) Change in the allowance for loan losses on acquired loans 90 543 Balance at end of period, net of allowance for loan losses on acquired loans $ 452,258 $ 597,274 The table below reflects refined accretable yield balance for acquired credit impaired loans: Three Months Ended March 31, (Dollars in thousands) 2019 2018 Balance at beginning of period $ 116,754 $ 133,096 Contractual interest income (7,078) (8,696) Accretion on acquired loans (5,120) (3,801) Reclass of nonaccretable difference due to improvement in expected cash flows 2,474 9,335 Other changes, net (52) (76) Balance at end of period $ 106,978 $ 129,858 The table above reflects the changes in the carrying amount of accretable yield for the acquired credit impaired loans and shows both the contractual interest income and incremental accretion for the three months ended March 31, 2019 and 2018. In the first quarter of 2019, the accretable yield balance declined by $9.8 million as total contractual interest and accretion income of $12.2 million was recognized. This was partially offset by improved expected cash flows of $2.5 million. The improved cash flows for the prior year was adjusted to accurately reflect the split between income types. As of March 31, 2019, the table above excludes $2.4 billion ($2.4 billion in contractual principal less a $30.2 million discount) in acquired loans which are accounted for under FASB ASC Topic 310-20. These loans were identified as either performing with no discount related to the credit or as a revolving lines of credit (commercial or consumer) at acquisition. As of March 31, 2018, the balance of these acquired loans totaled $3.3 billion ($3.3 billion in contractual principal less a $55.3 million remaining discount). Our loan loss policy adheres to GAAP as well as interagency guidance. The allowance for loan losses, which we sometimes refer to herein as ALLL, is based upon estimates made by management. We maintain an allowance for loan losses at a level that we believe is appropriate to cover estimated credit losses on individually evaluated loans that are determined to be impaired as well as estimated credit losses inherent in the remainder of our loan portfolio. Arriving at the allowance involves a high degree of management judgment and results in a range of estimated losses. We regularly evaluate the adequacy of the allowance through our internal risk rating system, outside credit review, and regulatory agency examinations to assess the quality of the loan portfolio and identify problem loans. The evaluation process also includes our analysis of current economic conditions, composition of the loan portfolio, past due and nonaccrual loans, concentrations of credit, lending policies and procedures, and historical loan loss experience. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on, among other factors, changes in economic conditions in our markets. In addition, regulatory agencies, as an integral part of their examination process, periodically review our allowances for losses on loans. These agencies may require management to recognize additions to the allowances based on their judgments about information available to them at the time of their examination. Because of these and other factors, it is possible that the allowances for losses on loans may change. The provision for loan losses is charged to expense in an amount necessary to maintain the allowance at an appropriate level. The allowance for loan losses on non‑acquired loans consists of general and specific reserves. The general reserves are determined by applying loss percentages to the portfolio that are based on historical loss experience for each class of loans and management’s evaluation and “risk grading” of the loan portfolio. Additionally, the general economic and business conditions affecting key lending areas, credit quality trends, collateral values, loan volumes and concentrations, seasoning of the loan portfolio, the findings of internal and external credit reviews and results from external bank regulatory examinations are included in this evaluation. Currently, these adjustments are applied to the non‑acquired loan portfolio when estimating the level of reserve required. The specific reserves are determined on a loan‑by‑loan basis based on management’s evaluation of our exposure for each credit, given the current payment status of the loan and the value of any underlying collateral. These are loans classified by management as doubtful or substandard. For such loans that are also classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. Generally, the need for specific reserve is evaluated on impaired loans, and once a specific reserve is established for a loan, a charge off of that amount occurs in the quarter subsequent to the establishment of the specific reserve. Loans that are determined to be impaired are provided a specific reserve, if necessary, and are excluded from the calculation of the general reserves. Beginning with the First Financial Holdings, Inc. acquisition, we segregated the loan portfolio into performing loans (“non‑credit impaired) and purchased credit impaired loans. The performing loans and revolving type loans are accounted for under FASB ASC 310‑20, with each loan being accounted for individually. The allowance for loan losses on these loans will be measured and recorded consistent with non‑acquired loans. The acquired credit impaired loans will follow the description in the next paragraph. In determining the acquisition date fair value of purchased loans, and in subsequent accounting, we generally aggregate purchased loans into pools of loans with common risk characteristics. Expected cash flows at the acquisition date in excess of the fair value of loans are recorded as interest income over the life of the loans using a level yield method if the timing and amount of the future cash flows of the pool is reasonably estimable. Subsequent to the acquisition date, increases in cash flows over those expected at the acquisition date are reclassified from the non‑accretable difference to accretable yield and recognized as interest income prospectively. Decreases in expected cash flows after the acquisition date are recognized by recording an allowance for loan losses. Management analyzes the acquired loan pools using various assessments of risk to determine an expected loss. The expected loss is derived based upon a loss given default based upon the collateral type and/or detailed review by loan officers and the probability of default that is determined based upon historical data at the loan level. All acquired loans managed by Special Asset Management are reviewed quarterly and assigned a loss given default. Acquired loans not managed by Special Asset Management are reviewed twice a year in a similar method to our originated portfolio of loans which follow review thresholds based on risk rating categories. In the fourth quarter of 2015, we modified its methodology to a more granular approach in determining loss given default on substandard loans with a net book balance between $100,000 and $500,000 by adjusting the loss given default to 90% of the most current collateral valuation based on appraised value. Substandard loans greater than $500,000 were individually assigned loss given defaults each quarter. Trends are reviewed in terms of accrual status, past due status, and weighted‑average grade of the loans within each of the accounting pools. In addition, the relationship between the change in the unpaid principal balance and change in the mark is assessed to correlate the directional consistency of the expected loss for each pool. An aggregated analysis of the changes in allowance for loan losses is as follows: Non-acquired Acquired Non-Credit Acquired Credit (Dollars in thousands) Loans Impaired Loans Impaired Loans Total Three Months Ended March 31, 2019: Balance at beginning of period $ 51,194 $ — $ 4,604 $ 55,798 Loans charged-off (1,245) (374) — (1,619) Recoveries of loans previously charged off (1) 752 206 — 958 Net charge-offs (493) (168) — (661) Provision for loan losses charged to operations 1,307 168 13 1,488 Reduction due to loan removals — — (103) (103) Balance at end of period $ 52,008 $ — $ 4,514 $ 56,522 Three Months Ended March 31, 2018: Balance at beginning of period $ 43,448 $ — $ 4,627 $ 48,075 Loans charged-off (1,169) (334) — (1,503) Recoveries of loans previously charged off (1) 802 165 — 967 Net charge-offs (367) (169) — (536) Provision for loan losses charged to operations 2,122 169 163 2,454 Reduction due to loan removals — — (706) (706) Balance at end of period $ 45,203 $ — $ 4,084 $ 49,287 (1) – Recoveries related to acquired credit impaired loans are recorded through other noninterest income on the consolidated statement of income and do not run through the ALLL. The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for non-acquired loans: Construction Commercial Commercial Consumer Other Income & Land Non-owner Owner Owner Home Commercial Producing Other (Dollars in thousands) Development Occupied Occupied Occupied Equity & Industrial Property Consumer Loans Total Three Months Ended March 31, 2019 Allowance for loan losses: Balance, December 31, 2018 $ 5,682 $ 8,754 $ 9,369 $ 11,913 $ 3,434 $ 7,454 $ 1,446 $ 3,101 $ 41 $ 51,194 Charge-offs — — (12) (37) (15) (19) — (1,162) — (1,245) Recoveries 299 22 25 2 36 71 45 252 — 752 Provision (benefit) (610) 964 247 180 (182) (257) (104) 1,004 65 1,307 Balance, March 31, 2019 $ 5,371 $ 9,740 $ 9,629 $ 12,058 $ 3,273 $ 7,249 $ 1,387 $ 3,195 $ 106 $ 52,008 Loans individually evaluated for impairment $ 786 $ 60 $ 21 $ 37 $ 161 $ 420 $ 111 $ 3 $ — $ 1,599 Loans collectively evaluated for impairment $ 4,585 $ 9,680 $ 9,608 $ 12,021 $ 3,112 $ 6,829 $ 1,276 $ 3,192 $ 106 $ 50,409 Loans: Loans individually evaluated for impairment $ 38,257 $ 375 $ 4,220 $ 6,885 $ 2,754 $ 1,315 $ 2,357 $ 110 $ — $ 56,273 Loans collectively evaluated for impairment 772,294 1,615,041 1,597,140 1,998,429 505,572 1,070,755 211,878 465,007 18,224 8,254,340 Total non-acquired loans $ 810,551 $ 1,615,416 $ 1,601,360 $ 2,005,314 $ 508,326 $ 1,072,070 $ 214,235 $ 465,117 $ 18,224 $ 8,310,613 Three Months Ended March 31, 2018 Allowance for loan losses: Balance, December 31, 2017 $ 5,921 $ 6,525 $ 8,128 $ 9,668 $ 3,250 $ 5,488 $ 1,375 $ 2,788 $ 305 $ 43,448 Charge-offs (35) — — (4) (66) (85) — (979) — (1,169) Recoveries 442 2 8 23 101 15 8 203 — 802 Provision (benefit) (481) 271 210 506 (48) 915 10 887 (148) 2,122 Balance, March 31, 2018 $ 5,847 $ 6,798 $ 8,346 $ 10,193 $ 3,237 $ 6,333 $ 1,393 $ 2,899 $ 157 $ 45,203 Loans individually evaluated for impairment $ 767 $ 110 $ 63 $ 35 $ 73 $ 489 $ 166 $ 9 $ — $ 1,712 Loans collectively evaluated for impairment $ 5,080 $ 6,688 $ 8,283 $ 10,158 $ 3,164 $ 5,844 $ 1,227 $ 2,890 $ 157 $ 43,491 Loans: Loans individually evaluated for impairment $ 46,198 $ 1,181 $ 5,578 $ 5,493 $ 3,168 $ 1,677 $ 3,086 $ 315 $ — $ 66,696 Loans collectively evaluated for impairment 824,943 1,049,743 1,291,160 1,607,008 445,414 870,686 195,598 390,469 20,795 6,695,816 Total non-acquired loans $ 871,141 $ 1,050,924 $ 1,296,738 $ 1,612,501 $ 448,582 $ 872,363 $ 198,684 $ 390,784 $ 20,795 $ 6,762,512 The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for acquired non-credit impaired loans: Construction Commercial Commercial Consumer Other Income & Land Non-owner Owner Owner Home Commercial Producing (Dollars in thousands) Development Occupied Occupied Occupied Equity & Industrial Property Consumer Other Total Three Months Ended March 31, 2019 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs (6) — — — (72) (134) (26) (136) — (374) Recoveries 1 — — 2 22 165 — 16 — 206 Provision (benefit) 5 — — (2) 50 (31) 26 120 — 168 Balance, March 31, 2019 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 113,572 629,394 400,658 610,376 225,278 173,840 120,696 104,923 — 2,378,737 Total acquired non-credit impaired loans $ 113,572 $ 629,394 $ 400,658 $ 610,376 $ 225,278 $ 173,840 $ 120,696 $ 104,923 $ — $ 2,378,737 Three Months Ended March 31, 2018 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs (1) — — (70) (82) (43) — (138) — (334) Recoveries 1 — — 57 51 53 — 3 — 165 Provision (benefit) — — — 13 31 (10) — 135 — 169 Balance, March 31, 2018 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 349,532 783,466 498,541 683,614 295,721 344,171 186,091 133,802 — 3,274,938 Total acquired non-credit impaired loans $ 349,532 $ 783,466 $ 498,541 $ 683,614 $ 295,721 $ 344,171 $ 186,091 $ 133,802 $ — $ 3,274,938 The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for acquired credit impaired loans: Commercial Real Estate- Commercial Construction and Residential Commercial (Dollars in thousands) Real Estate Development Real Estate Consumer and Industrial Total Three Months Ended March 31, 2019 Allowance for loan losses: Balance, December 31, 2018 $ 801 $ 717 $ 2,246 $ 761 $ 79 $ 4,604 Provision (benefit) for loan losses 51 — 16 — 13 Reduction due to loan removals (5) — — — Balance, March 31, 2019 $ 847 $ 717 $ 2,164 $ 707 $ 79 $ 4,514 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ 847 $ 717 $ 2,164 $ 707 $ 79 $ 4,514 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 173,707 32,257 199,701 40,182 10,925 456,772 Total acquired credit impaired loans $ 173,707 $ 32,257 $ 199,701 $ 40,182 $ 10,925 $ 456,772 Three Months Ended March 31, 2018 Allowance for loan losses: Balance , December 31, 2017 $ 288 $ 180 $ 3,553 $ 461 $ 145 $ 4,627 Provision (benefit) for loan losses (14) 88 (944) 133 900 163 Reduction due to loan removals (13) (53) (100) — (540) (706) Balance, March 31, 2018 $ 261 $ 215 $ 2,509 $ 594 $ 505 $ 4,084 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ 261 $ 215 $ 2,509 $ 594 $ 505 $ 4,084 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 233,277 46,219 248,766 48,801 24,295 601,358 Total acquired credit impaired loans $ 233,277 $ 46,219 $ 248,766 $ 48,801 $ 24,295 $ 601,358 *— The carrying value of acquired credit impaired loans includes a non-accretable difference which is primarily associated with the assessment of credit quality of acquired loans. As part of the ongoing monitoring of the credit quality of our loan portfolio, management tracks certain credit quality indicators, including trends related to (i) the level of classified loans, (ii) net charge-offs, (iii) non-performing loans (see details below), and (iv) the general economic conditions of the markets that we serve. We utilize a risk grading matrix to assign a risk grade to each of its loans. A description of the general characteristics of the risk grades is as follows: · Pass—These loans range from minimal credit risk to average, however, still acceptable credit risk. · Special mention—A special mention loan has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or the institution’s credit position at some future date. · Substandard—A substandard loan is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified must have a well-defined weakness, or weaknesses, that may jeopardize the liquidation of the debt. A substandard loan is characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. · Doubtful—A doubtful loan has all of the weaknesses inherent in one classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of the currently existing facts, conditions and values, highly questionable and improbable. The following table presents the credit risk profile by risk grade of commercial loans for non-acquired loans: Construction & Development Commercial Non-owner Occupied Commercial Owner Occupied March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 801,949 $ 832,612 $ 857,307 $ 1,607,034 $ 1,407,744 $ 1,040,669 $ 1,564,083 $ 1,480,267 $ 1,267,759 Special mention 5,303 6,015 10,499 7,372 6,427 8,497 24,241 24,576 22,619 Substandard 3,299 2,818 3,335 1,010 1,380 1,758 13,036 12,708 6,360 Doubtful — — — — — — — — — $ 810,551 $ 841,445 $ 871,141 $ 1,615,416 $ 1,415,551 $ 1,050,924 $ 1,601,360 $ 1,517,551 $ 1,296,738 Commercial & Industrial Other Income Producing Property Commercial Total March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 1,054,732 $ 1,037,915 $ 857,567 $ 208,345 $ 208,186 $ 191,856 $ 5,236,143 $ 4,966,724 $ 4,215,158 Special mention 7,056 5,887 12,286 4,250 4,706 5,321 48,222 47,611 59,222 Substandard 10,282 11,150 2,510 1,640 1,461 1,507 29,267 29,517 15,470 Doubtful — — — — — — — — — $ 1,072,070 $ 1,054,952 $ 872,363 $ 214,235 $ 214,353 $ 198,684 $ 5,313,632 $ 5,043,852 $ 4,289,850 The following table presents the credit risk profile by risk grade of consumer loans for non-acquired loans: Consumer Owner Occupied Home Equity Consumer March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 1,978,122 $ 1,909,427 $ 1,584,427 $ 495,127 $ 481,607 $ 435,282 $ 463,271 $ 446,823 $ 389,386 Special mention 10,769 11,304 13,329 6,915 7,293 6,767 467 437 301 Substandard 16,423 15,534 14,745 6,284 6,248 6,533 1,379 1,404 1,097 Doubtful — — — — — — — — — $ 2,005,314 $ 1,936,265 $ 1,612,501 $ 508,326 $ 495,148 $ 448,582 $ 465,117 $ 448,664 $ 390,784 Other Consumer Total March 31, 2019 December 31, 2018 March 31, 2018 March 31, 2019 December 31, 2018 March 31, 2018 Pass $ 18,224 $ 9,357 $ 20,795 $ 2,954,744 $ 2,847,214 $ 2,429,890 Special mention — — — 18,151 19,034 20,397 Substandard — — — 24,086 23,186 22,375 Doubtful — — — — — — $ 18,224 $ 9,357 $ 20,795 $ 2,996,981 $ 2,889,434 $ 2,472,662 The following table presents the credit risk profile by risk grade of total non-acquired loans: Total Non-acquired Loans March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Pass $ 8,190,887 $ 7,813,938 $ 6,645,048 Special mention 66,373 66,645 79,619 Substandard 53,353 52,703 37,845 Doubtful — — — $ 8,310,613 $ 7,933,286 $ 6,762,512 The following table presents the credit risk profile by risk grade of commercial loans for acquired non-credit impaired loans: Commercial Non-owner Construction & Development Occupied Commercial Owner Occupied March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 111,414 $ 163,777 $ 345,635 $ 615,277 $ 665,913 $ 775,924 $ 380,536 $ 411,783 $ 490,089 Special mention 845 838 2,892 13,682 13,018 7,533 15,440 5,664 8,254 Substandard 1,313 455 1,005 435 322 9 4,682 4,394 198 Doubtful — — — — — — — — — $ 113,572 $ 165,070 $ 349,532 $ 629,394 $ 679,253 $ 783,466 $ 400,658 $ 421,841 $ 498,541 Other Income Producing Commercial & Industrial Property Commercial Total March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 163,298 $ 202,399 $ 327,409 $ 113,047 $ 125,399 $ 180,825 $ 1,383,572 $ 1,569,271 $ 2,119,882 Special mention 7,897 6,523 8,049 6,333 6,419 4,369 44,197 32,462 31,097 Substandard 2,645 3,615 8,713 1,316 1,292 897 10,391 10,078 10,822 Doubtful — — — — — — — — — $ 173,840 $ 212,537 $ 344,171 $ 120,696 $ 133,110 $ 186,091 $ 1,438,160 $ 1,611,811 $ 2,161,801 The following table presents the credit risk profile by risk grade of consumer loans for acquired non-credit impaired loans: Consumer Owner Occupied Home Equity Consumer March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 597,220 $ 617,391 $ 676,981 $ 210,066 $ 227,515 $ 279,487 $ 101,907 $ 108,833 $ 130,915 Special mention 7,325 7,868 4,484 7,623 7,688 8,942 666 698 520 Substandard 5,831 3,554 2,149 7,589 7,222 7,292 2,350 2,246 2,367 Doubtful — — — — — — — — — $ 610,376 $ 628,813 $ 683,614 $ 225,278 $ 242,425 $ 295,721 $ 104,923 $ 111,777 $ 133,802 Consumer Total March 31, December 31, March 31, 2019 2018 2018 Pass $ 909,193 $ 953,739 $ 1,087,383 Special mention 15,614 16,254 13,946 Substandard 15,770 13,022 11,808 Doubtful — — — $ 940,577 $ 983,015 $ 1,113,137 The following table presents the credit risk profile by risk grade of total acquired non-credit impaired loans: Total Acquired Non-credit Impaired Loans March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Pass $ 2,292,765 $ 2,523,010 $ 3,207,265 Special mention 59,811 48,716 45,043 Substandard 26,161 23,100 22,630 Doubtful — — — $ 2,378,737 $ 2,594,826 $ 3,274,938 The following table presents the credit risk profile by risk grade of acquired credit impaired loans (identified as credit-impaired at the time of acquisition), net of the related discount (this table should be read in conjunction with the allowance for acquired credit impaired loan losses table found on page 24): Commercial Real Estate— Construction and Commercial Real Estate Development March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 Pass $ 140,785 $ 160,788 $ 171,585 $ 20,950 $ 20,293 $ 28,501 Special mention 13,025 14,393 24,550 3,500 3,001 4,654 Substandard 19,897 21,583 37,142 7,807 9,648 13,064 Doubtful — — — — — — $ 173,707 $ 196,764 $ 233,277 $ 32,257 $ 32,942 $ 46,219 Residential Real Estate Consumer Commercial & Industrial March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 100,803 $ 104,181 $ 129,952 $ 5,134 $ 5,751 $ 7,247 $ 6,802 $ 5,093 $ 17,163 Special mention 40,036 41,964 50,845 13,935 14,484 16,329 530 546 1,132 Substandard 58,862 61,337 67,969 21,113 22,257 25,225 3,593 4,404 6,000 Doubtful — — — — — — — — — $ 199,701 $ 207,482 $ 248,766 $ 40,182 $ 42,492 $ 48,801 $ 10,925 $ 10,043 $ 24,295 Total Acquired Credit Impaired Loans March 31, December 31, March 31, 2019 2018 2018 Pass $ 274,474 $ 296,106 $ 354,448 Special mention 71,026 74,388 97,510 Substandard 111,272 119,229 149,400 Doubtful — — — $ 456,772 $ 489,723 $ 601,358 The risk grading of acquired credit impaired loans is determined utilizing a loan’s contractual balance, while the amount recorded in the financial statements and reflected above is the carrying value. The following table presents an aging analysis of past due loans (includes nonaccrual loans), segregated by class for non-acquired loans: 30 - 59 Days 60 - 89 Days 90+ Days Total Total (Dollars in thousands) Past Due Past Due Past Due Past Due Current Loans March 31, 2019 Commercial real estate: Construction and land development $ 563 $ 141 $ 283 $ 987 $ 809,564 $ 810,551 Commercial non-owner occupied — — 22 22 1,615,394 1,615,416 Commercial owner occupied 3,336 1,556 889 5,781 1,595,579 1,601,360 Consumer real estate: Consumer owner occupied 1,929 743 2,510 5,182 2,000,132 2,005,314 Home equity loans 333 206 1,022 1,561 506,765 508,326 Commercial and industrial 4,658 222 614 5,494 1,066,576 1,072,070 Other income producing property 658 — 372 1,030 213,205 214,235 Consumer 471 230 677 1,378 463,739 465,117 Other loans — — — — 18,224 18,224 $ 11,948 $ 3,098 $ 6,389 $ 21,435 $ 8,289,178 $ 8,310,613 December 31, 2018 Commercial real estate: Construction and land development $ 693 $ 305 $ 452 $ 1,450 $ 839,995 $ 841,445 Commercial non-owner occupied 68 18 396 482 1,415,069 1,415,551 Commercial owner occupied 1,639 1,495 904 4,038 1,513,513 1,517,551 Consumer real estate: Consumer owner occupied 1,460 789 943 3,192 1,933,073 1,936,265 Home equity loans 744 532 713 1,989 493,159 495,148 Commercial and industrial 898 120 573 1,591 1,053,361 1,054,952 Other income producing property 169 26 289 484 213,869 214,353 Consumer 437 174 718 1,329 447,335 448,664 Other loans — — — — 9,357 9,357 $ 6,108 $ 3,459 $ 4,988 $ 14,555 $ 7,918,731 $ 7,933,286 March 31, 2018 Commercial real estate: Construction and land development $ 673 $ 4 $ 133 $ 810 $ 870,331 $ 871,141 Commercial non-owner occupied 89 20 707 816 1,0

Other Real Estate Owned

Other Real Estate Owned	3 Months Ended
	Mar. 31, 2019
Other Real Estate Owned
Other Real Estate Owned	Note 6—Other Real Estate Owned The following is a summary of information pertaining to OREO: Three Months Ended March 31, (Dollars in thousands) 2019 2018 Beginning balance $ 11,410 $ 11,203 Acquired in PSC acquisition — 210 Additions 1,004 2,895 Writedowns (98) (777) Sold (1,019) (2,458) Ending Balance $ 11,297 $ 11,073 At March 31, 2019, there were a total of 74 properties included in OREO compared to 77 properties at March 31, 2018. At March 31, 2019, we had $1.2 million in residential real estate included in OREO and $4.8 million in residential real estate consumer mortgage loans in the process of foreclosure.

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases
Leases	Note 7 — Leases As of March 31, 2019, we had operating ROU assets of $82.8 million and operating lease liabilities of $83.0 million. We maintain operating leases on land and buildings for our operating centers, branch facilities and ATM locations. Most leases include one or more options to renew, with renewal terms extending up to 24 years. The exercise of renewal options is based on the sole judgment of management and what they consider to be reasonably certain given the environment today. Factors in determining whether an option is reasonably certain of exercise include, but are not limited to, the value of leasehold improvements, the value of renewal rate compared to market rates, and the presence of factors that would cause a significant economic penalty to us if the option is not exercised. Leases with an initial term of 12 months or less are not recorded on the balance sheet and instead are recognized in lease expense on a straight-line basis over the lease term. We do not sublease any portion of these locations to third parties. Three Months Ended (Dollars in thousands) March 31, 2019 Lease Expense Components: Operating lease expense $ 2,146 Short-term lease expense Variable lease expense 69 Total lease expense $ 2,359 Supplemental Cash Flow Information Related to Leases: Cash paid for amounts included in the measurement of lease liabilities - operating leases $ 1,890 Initial ROU assets recorded in exchange for new lease liabilities at January 1, 2019 - operating leases $ 82,160 ROU assets obtained in exchange for new lease liabilities during first quarter 2019- operating leases $ 1,956 Weighted - average remaining lease term (years) - operating leases 14.33 Weighted - average discount rate - operating leases Supplemental Balance Sheet Information Related to Leases Operating lease ROU assets (premises and equipment) $ 82,787 Operating lease liabilities (other liabilities) $ 83,043 Maturity Analysis of Lease Liabilities: Year Ending December 31, 2019 (excluding the three months ended March 31, 2019) $ 5,820 2020 7,866 2021 7,939 2022 7,937 2023 7,890 Thereafter 73,186 Total $ 110,638 Less: Imputed Interest (27,595) Lease Liability $ 83,043

Deposits

Deposits	3 Months Ended
	Mar. 31, 2019
Deposits
Deposits	Note 8 — Deposits Our total deposits are comprised of the following: March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Certificates of deposit $ 1,756,637 $ 1,775,095 $ 1,765,576 Interest-bearing demand deposits 5,562,111 5,407,175 5,308,154 Non-interest bearing demand deposits 3,219,864 3,061,769 3,120,818 Savings deposits 1,374,557 1,399,815 1,464,074 Other time deposits 5,802 3,079 4,476 Total deposits $ 11,918,971 $ 11,646,933 $ 11,663,098 At March 31, 2019, December 31, 2018, and March 31, 2018, we had $325.1 million, $320.0 million, and $340.9 million in certificates of deposits of $250,000 and greater, respectively. At March 31, 2019, December 31, 2018, and March 31, 2018, we had $7.6 million, $7.6 million and $35.0 million, in traditional, out-of-market brokered deposits, respectively.

Retirement Plans

Retirement Plans	3 Months Ended
	Mar. 31, 2019
Retirement Plans
Retirement Plans	Note 9 — Retirement Plans The Company and the Bank provide certain retirement benefits to their employees in the form of a non-contributory defined benefit pension plan and an employees’ savings plan. The non-contributory defined benefit pension plan covers all employees hired on or before December 31, 2005, who have attained age 21, and who have completed a year of eligible service. Employees hired on or after January 1, 2006 are not eligible to participate in the non-contributory defined benefit pension plan, but are eligible to participate in the employees’ savings plan. On this date, a new benefit formula applies only to participants who have not attained age 45 or who do not have five years of service. Effective July 1, 2009, we suspended the accrual of benefits for pension plan participants under the non-contributory defined benefit plan. The pension plan remained suspended as of March 31, 2019. During 2018, we made the decision to terminate the non-contributory defined benefit pension plan. We received approval from the IRS through a determination letter in the fourth quarter of 2018 to proceed with the termination. The plan is expected to be fully terminated and paid out during the second quarter of 2019 . Participants have the option to be fully paid out in a lump sum or be paid through an annuity over time. If the participant chooses the annuity, the funds will be placed in an annuity product with a third party. As of March 31, 2019, approximately 98% of pension plan assets were invested with Fixed Income Assets, and approximately 2% of pension plan assets were held in cash equivalents. When the decision was made to terminate the plan, the Investment Committee and the Company made the decision to move the Plan assets into less risky investments of Cash Equivalents and Fixed Income Assets and out of Equities. The components of net periodic pension expense (benefit) recognized are as follows: Three Months Ended March 31, (Dollars in thousands) 2019 2018 Interest cost $ $ Service cost Expected return on plan assets Recognized net actuarial loss Net periodic pension benefit $ $ Based on the immaterial nature of the components of the net periodic pension expense (benefit), we recorded the entire amount in the line item salaries and employee benefits on the statement of income. We do not expect to contribute to the pension plan in 2019, but reserve the right to contribute between the minimum required and maximum deductible amounts as determined under applicable federal laws. Under the provisions of Internal Revenue Code Section 401(k), electing employees are eligible to participate in the employees’ savings plan after attaining age 21. Plan participants elect to contribute portions of their annual base compensation as a before tax contribution. Employer contributions may be made from current or accumulated net profits. Participants may elect to contribute 1% to 50% of annual base compensation as a before tax contribution. In 2018, employees participating in the plan received a 100% match of their 401(k) plan contribution from the Company, up to 4% of their salary. The employees were also eligible for an additional 2% discretionary matching contribution contingent upon certain of our annual financial goals which would be paid in the first quarter of the following year. Based on our financial performance in 2018, we paid a 0.75% discretionary matching contribution in the first quarter of 2019. Currently, we expect the same terms in the employees’ savings plan for 2019. We expensed $1.2 million and $2.4 million for the 401(k) plan during the three months ended March 31, 2019 and 2018, respectively. Employees can enter the savings plan on or after the first day of each month. The employee may enter into a salary deferral agreement at any time to select an alternative deferral amount or to elect not to defer in the plan. If the employee does not elect an investment allocation, the plan administrator will select a retirement-based portfolio according to the employee’s number of years until normal retirement age. The plan’s investment valuations are generally provided on a daily basis.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share
Earnings Per Share	Note 10 — Earnings Per Share Basic earnings per share are calculated by dividing net income by the weighted-average shares of common stock outstanding during each period, excluding non-vested shares. Our diluted earnings per share are based on the weighted-average shares of common stock outstanding during each period plus the maximum dilutive effect of common stock issuable upon exercise of stock options or vesting of restricted shares. The weighted-average number of shares and equivalents are determined after giving retroactive effect to stock dividends and stock splits. The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended March 31, (Dollars and shares in thousands, except for per share amounts) 2019 2018 Basic earnings per common share: Net income $ 44,367 $ 42,326 Weighted-average basic common shares 35,445 36,646 Basic earnings per common share $ $ Diluted earnings per share: Net income $ 44,367 $ 42,326 Weighted-average basic common shares 35,445 36,646 Effect of dilutive securities 174 253 Weighted-average dilutive shares 35,619 36,899 Diluted earnings per common share $ 1.25 $ 1.15 The calculation of diluted earnings per common share excludes outstanding stock options for which the results would have been anti-dilutive under the treasury stock method as follows: Three Months Ended March 31, (Dollars in thousands) 2019 2018 Number of shares Range of exercise prices $ to $ $ to $

Share-Based Compensation

Share-Based Compensation	3 Months Ended
	Mar. 31, 2019
Share-Based Compensation
Share-Based Compensation	Note 11 — Share-Based Compensation Our 2004, 2012 and 2019 share-based compensation plans are long-term retention plans intended to attract, retain, and provide incentives for key employees and non-employee directors in the form of incentive and non-qualified stock options, restricted stock, and restricted stock units (“RSUs”). Stock Options With the exception of non-qualified stock options granted to directors under the 2004 and 2012 plans, which in some cases may be exercised at any time prior to expiration and in some other cases may be exercised at intervals less than a year following the grant date, incentive stock options granted under our 2004, 2012 and 2019 plans may not be exercised in whole or in part within a year following the date of the grant, as these incentive stock options become exercisable in 25% increments pro ratably over the four-year period following the grant date. The options are granted at an exercise price at least equal to the fair value of the common stock at the date of grant and expire ten years from the date of grant. No options were granted under the 2004 plan after January 26, 2012, and the 2004 plan is closed other than for any options still unexercised and outstanding. No options were granted under the 2012 plan after February 1, 2019, and the 2012 plan is closed other than for any options still unexercised and outstanding. The 2019 plan is the only plan from which new share-based compensation grants may be issued. It is our policy to grant options out of the 1,000,000 share registered under the 2019 plan. Activity in our stock option plans for 2004 and 2012 is summarized in the following table. Our 2019 plan was adopted by our shareholders at our annual meeting on April 25, 2019. All information has been retroactively adjusted for stock dividends and stock splits. Weighted Weighted Average Aggregate Average Remaining Intrinsic Shares Price (Yrs.) (000's) Outstanding at January 1, 2019 213,866 $ 61.28 Granted — — Exercised (12,722) 31.62 Outstanding at March 31, 2019 201,144 63.16 5.64 $ 2,461 Exercisable at March 31, 2019 155,472 56.07 4.88 $ 2,432 Weighted-average fair value of options granted during the year $ The fair value of options is estimated at the date of grant using the Black-Scholes option pricing model and expensed over the options’ vesting periods. The following weighted-average assumptions were used in valuing options issued: Year ended March 31, 2019 2018 Dividend yield — % % Expected life — years years Expected volatility — % % Risk-free interest rate — % % As of March 31, 2019, there was $1.2 million of total unrecognized compensation cost related to nonvested stock option grants under the plans. The cost is expected to be recognized over a weighted-average period of 1.51 years as of March 31, 2019. The total fair value of shares vested during the three months ended March 31, 2019 was $799,000. Restricted Stock We from time-to-time also grants shares of restricted stock to key employees and non-employee directors. These awards help align the interests of these employees and directors with the interests of our shareholders by providing economic value directly related to increases in the value of our stock. The value of the stock awarded is established as the fair market value of the stock at the time of the grant. We recognize expenses, equal to the total value of such awards, ratably over the vesting period of the stock grants. Restricted stock grants to employees typically “cliff vest” after four years. Grants to non-employee directors typically vest within a 12-month period. All restricted stock agreements are conditioned upon continued employment and service in the case of directors. Termination of employment prior to a vesting date, as described below, would terminate any interest in non-vested shares. Prior to vesting of the shares, as long as employed by the Company, the key employees and non-employee directors will have the right to vote such shares and to receive dividends paid with respect to such shares. All restricted shares will fully vest in the event of change in control of the Company or upon the death of the recipient. Nonvested restricted stock for the three months ended March 31, 2019 is summarized in the following table. All information has been retroactively adjusted for stock dividends and stock splits. Weighted- Average Grant-Date Restricted Stock Shares Fair Value Nonvested at January 1, 2019 104,419 $ 62.45 Granted 1,148 59.95 Vested (7,040) 86.82 Forfeited (1,118) 77.88 Nonvested at March 31, 2019 97,409 60.48 As of March 31, 2019, there was $1.8 million of total unrecognized compensation cost related to nonvested restricted stock granted under the plans. This cost is expected to be recognized over a weighted-average period of 1.50 years as of March 31, 2019. The total fair value of shares vested during the three months ended March 31, 2019 was $732,000. Restricted Stock Units We from time‑to‑time also grants performance RSUs to key employees. These awards help align the interests of these employees with the interests of our shareholders by providing economic value directly related to our performance. Some performance RSU grants contain a three-year performance period while others contain a one-year performance period and a time vested requirement (generally four years from grant date). We communicate threshold, target, and maximum performance RSU awards and performance targets to the applicable key employees at the beginning of a performance period. Dividends are not paid in respect to the awards during the performance period. The value of the RSUs awarded is established as the fair market value of the stock at the time of the grant. We recognize expenses on a straight‑line basis typically over the performance and vesting periods based upon the probable performance target that will be met. For the three months ended March 31, 2019, we accrued for 80.6% of the RSUs granted, based on Management’s expectations of performance. Nonvested RSUs for the three months ended March 31, 2019 is summarized in the following table. Weighted- Average Grant-Date Restricted Stock Units Shares Fair Value Nonvested at January 1, 2019 200,540 $ 85.15 Granted 128,386 66.80 Forfeited (227) 89.43 Nonvested at March 31, 2019 328,699 77.98 As of March 31, 2019, there was $13.5 million of total unrecognized compensation cost related to nonvested RSUs granted under the plan. This cost is expected to be recognized over a weighted-average period of 2.17 years as of March 31, 2019. The total fair value of RSUs vested during the three months ended March 31, 2019 was $2.9 million. During the three months ended March 31, 2019, 44,599 vested restricted stock units were issued to the participants in the 2016 Long-Term Incentive Plan.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	3 Months Ended
	Mar. 31, 2019
Commitments and Contingent Liabilities
Commitments and Contingent Liabilities	Note 12 — Commitments and Contingent Liabilities In the normal course of business, we make various commitments and incur certain contingent liabilities, which are not reflected in the accompanying financial statements. The commitments and contingent liabilities include guarantees, commitments to extend credit, and standby letters of credit. At March 31, 2019, commitments to extend credit and standby letters of credit totaled $2.8 billion. We do not anticipate any material losses as a result of these transactions. We have been named as defendant in various legal actions, arising from its normal business activities, in which damages in various amounts are claimed. We are also exposed to litigation risk related to the prior business activities of banks acquired through whole bank acquisitions as well as banks from which assets were acquired and liabilities assumed in FDIC-assisted transactions. Although the amount of any ultimate liability with respect to such matters cannot be determined, in the opinion of management, any such liability is not expected to have a material effect on our consolidated financial statements. The Company and the Bank are involved at times in certain litigation arising in the normal course of business. In the opinion of management as of March 31, 2019, there is no pending or threatened litigation that will have a material effect on our consolidated financial position or results of operations.

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2019
Fair Value
Fair Value	Note 13 — Fair Value FASB ASC Topic 820, Fair Value Measurements and Disclosures , defines fair value, establishes a framework for measuring fair value under GAAP, and enhances disclosures about fair value measurements. FASB ASC Topic 820 clarifies that fair value should be based on the assumptions market participants would use when pricing an asset or liability and establishes a fair value hierarchy that prioritizes the information used to develop those assumptions. We utilize fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Available for sale securities, derivative contracts, and mortgage servicing rights (“MSRs”) are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record at fair value other assets on a nonrecurring basis, such as impaired loans, OREO, and certain other assets. These nonrecurring fair value adjustments typically involve application of lower of cost or market accounting or write-downs of individual assets. FASB ASC Topic 820 establishes a three-tier fair value hierarchy which prioritizes the inputs used in measuring fair value as follows: Level 1 Observable inputs such as quoted prices in active markets; Level 2 Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and Level 3 Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions. The following is a description of valuation methodologies used for assets recorded at fair value. Investment Securities Securities available for sale are valued on a recurring basis at quoted market prices where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable securities. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange and The NASDAQ Stock Market, or U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include mortgage-backed securities and debentures issued by government sponsored entities, municipal bonds and corporate debt securities. Securities held to maturity are valued at quoted market prices or dealer quotes similar to securities available for sale. The carrying value of FHLB stock approximates fair value based on the redemption provisions. Mortgage Loans Held for Sale Mortgage loans held for sale are carried at fair value. The fair values of mortgage loans held for sale are based on commitments on hand from investors within the secondary market for loans with similar characteristics. As such, the fair value adjustments for mortgage loans held for sale are recurring Level 2. Loans We do not record loans at fair value on a recurring basis. However, from time to time, a loan may be considered impaired and an ALLL may be established. Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Once a loan is identified as individually impaired, management measures impairment using estimated fair value methodologies. The fair value of impaired loans is estimated using one of several methods, including collateral value, market value of similar debt, enterprise value, liquidation value and discounted cash flows. Those impaired loans not requiring an allowance represent loans for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans. At March 31, 2019, substantially all of the impaired loans were evaluated based on the fair value of the collateral because such loans were considered collateral dependent. Impaired loans, where an allowance is established based on the fair value of collateral; require classification in the fair value hierarchy. When the fair value of the collateral is based on an observable market price or a current appraised value, we consider the impaired loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, we consider the impaired loan as nonrecurring Level 3. Other Real Estate Owned Typically OREO, consisting of properties obtained through foreclosure or in satisfaction of loans, is reported at fair value, determined on the basis of current appraisals, comparable sales, and other estimates of value obtained principally from independent sources, adjusted for estimated selling costs (Level 2). However, OREO is considered Level 3 in the fair value hierarchy because management has qualitatively applied a discount due to the size, supply of inventory, and the incremental discounts applied to the appraisals. Management also considers other factors, including changes in absorption rates, length of time the property has been on the market and anticipated sales values, which have resulted in adjustments to the collateral value estimates indicated in certain appraisals. At the time of foreclosure, any excess of the loan balance over the fair value of the real estate held as collateral is treated as a charge against the ALLL. Gains or losses on sale and generally any subsequent adjustments to the value are recorded as a component of OREO expense. Derivative Financial Instruments Fair value is estimated using pricing models of derivatives with similar characteristics or discounted cash flow models where future floating cash flows are projected and discounted back; and accordingly, these derivatives are classified within Level 2 of the fair value hierarchy. (See Note 15—Derivative Financial Instruments for additional information). Mortgage servicing rights The estimated fair value of MSRs is obtained through an independent derivatives dealer analysis of future cash flows. The evaluation utilizes assumptions market participants would use in determining fair value including market discount rates, prepayment speeds, servicing income, servicing costs, default rates and other market driven data, as well as the market’s perception of future interest rate movements. MSRs are classified as Level 3. Assets and Liabilities Recorded at Fair Value on a Recurring Basis The tables below present the recorded amount of assets and liabilities measured at fair value on a recurring basis. Quoted Prices In Active Significant Markets Other Significant for Identical Observable Unobservable Assets Inputs Inputs (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) March 31, 2019: Assets Derivative financial instruments $ 8,727 $ — $ 8,727 $ — Loans held for sale 33,297 — 33,297 — Securities available for sale: Government-sponsored entities debt 65,704 — 65,704 — State and municipal obligations 193,418 — 193,418 — Mortgage-backed securities 1,207,127 — 1,207,127 — Total securities available for sale 1,466,249 — 1,466,249 — Mortgage servicing rights 32,415 — — 32,415 $ 1,540,688 $ — $ 1,508,273 $ 32,415 Liabilities Derivative financial instruments $ 10,330 $ — $ 10,330 $ — December 31, 2018: Assets Derivative financial instruments $ 5,090 $ — $ 5,090 $ — Loans held for sale 22,925 — 22,925 — Securities available for sale: Government-sponsored entities debt 48,251 — 48,251 — State and municipal obligations 200,768 — 200,768 — Mortgage-backed securities 1,268,048 — 1,268,048 — Total securities available for sale 1,517,067 — 1,517,067 — Mortgage servicing rights 34,727 — — 34,727 $ 1,579,809 $ — $ 1,545,082 $ 34,727 Liabilities Derivative financial instruments $ 4,421 $ — $ 4,421 $ — March 31, 2018: Assets Derivative financial instruments $ 7,420 $ — $ 7,420 $ — Loans held for sale 42,690 — 42,690 — Securities available for sale: Government-sponsored entities debt 89,746 — 89,746 — State and municipal obligations 225,686 — 225,686 — Mortgage-backed securities 1,325,405 — 1,325,405 — Total securities available for sale 1,640,837 — 1,640,837 — Mortgage servicing rights 34,196 — — 34,196 $ 1,725,143 $ — $ 1,690,947 $ 34,196 Liabilities Derivative financial instruments $ 6,094 $ — $ 6,094 $ — Changes in Level 1, 2 and 3 Fair Value Measurements When a determination is made to classify a financial instrument within Level 3 of the valuation hierarchy, the determination is based upon the significance of the unobservable factors to the overall fair value measurement. However, since Level 3 financial instruments typically include, in addition to the unobservable or Level 3 components, observable components (that is, components that are actively quoted and can be validated to external sources), the gains and losses below include changes in fair value due in part to observable factors that are part of the valuation methodology. There were no changes in hierarchy classifications of Level 3 assets or liabilities for the three months ended March 31, 2019. A reconciliation of the beginning and ending balances of Level 3 assets and liabilities recorded at fair value on a recurring basis for the three months ended March 31, 2019 and 2018 is as follows: (Dollars in thousands) Assets Liabilities Fair value, January 1, 2019 $ 34,727 $ — Servicing assets that resulted from transfers of financial assets 931 — Changes in fair value due to valuation inputs or assumptions (2,357) — Changes in fair value due to decay (886) — Fair value , March 31, 2019 $ 32,415 $ — Fair value, January 1, 2018 $ 31,119 $ — Servicing assets that resulted from transfers of financial assets 1,490 — Changes in fair value due to valuation inputs or assumptions 2,516 — Changes in fair value due to decay (929) — Fair value, March 31, 2018 $ 34,196 $ — There were no unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities at March 31, 2019 or 2018. Assets and Liabilities Recorded at Fair Value on a Nonrecurring Basis The tables below present the recorded amount of assets and liabilities measured at fair value on a nonrecurring basis: Quoted Prices In Active Significant Markets Other Significant for Identical Observable Unobservable Assets Inputs Inputs (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) March 31, 2019: OREO $ 11,297 $ — $ — $ 11,297 Non-acquired impaired loans 1,839 — — 1,839 December 31, 2018: OREO $ 11,410 $ — $ — $ 11,410 Non-acquired impaired loans 13,164 — — 13,164 March 31, 2018: OREO $ 11,073 $ — $ — $ 11,073 Non-acquired impaired loans 2,118 — — 2,118 Quantitative Information about Level 3 Fair Value Measurement Weighted Average March 31, December 31, March 31, Valuation Technique Unobservable Input 2019 2018 2018 Nonrecurring measurements: Non-acquired impaired loans Discounted appraisals Collateral discounts 3 % 3 % 3 % OREO Discounted appraisals Collateral discounts and estimated costs to sell 24 % 23 % 28 % Fair Value of Financial Instruments We used the following methods and assumptions in estimating our fair value disclosures for financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those models are significantly affected by the assumptions used, including the discount rates and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instrument. The use of different methodologies may have a material effect on the estimated fair value amounts. The fair value estimates presented herein are based on pertinent information available to management as of March 31, 2019, December 31, 2018 and March 31, 2018. Such amounts have not been revalued for purposes of these consolidated financial statements since those dates and, therefore, current estimates of fair value may differ significantly from the amounts presented herein. The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value: Cash and Cash Equivalents — The carrying amount is a reasonable estimate of fair value. Investment Securities — Securities held to maturity are valued at quoted market prices or dealer quotes. The carrying value of FHLB stock approximates fair value based on the redemption provisions. The carrying value of our investment in unconsolidated subsidiaries approximates fair value. See Note 4—Investment Securities for additional information, as well as page 39 regarding fair value. Loans held for sale — The fair values disclosed for loans held for sale are based on commitments from investors for loans with similar characteristics. Loans — ASU 2016-01 - Financial Instruments – Overall – Recognition and Measurement of Financial Assets and Financial Liabilities became effective for us on January 1, 2018. This accounting standard requires us to calculate the fair value of our loans for disclosure purposes based on an estimated exit price. With ASU 2016-01, to estimate an exit price, all loans (fixed and variable) are being valued with a discounted cash flow analyses for loans that includes our estimate of future credit losses expected to be incurred over the life of the loans. Fair values for certain mortgage loans (e.g., one-to-four family residential) and other consumer loans are estimated using discounted cash flow analyses based on our current rates offered for new loans of the same type, structure and credit quality. Fair values for other loans (e.g., commercial real estate and investment property mortgage loans, commercial and industrial loans) are estimated using discounted cash flow analyses-using interest rates we currently offer for loans with similar terms to borrowers of similar credit quality. Fair values for non-performing loans are estimated using a discounted cash flow analyses. Deposit Liabilities — The fair values disclosed for demand deposits (e.g., interest and noninterest bearing checking, passbook savings, and certain types of money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). The carrying amounts of variable-rate, fixed-term money market accounts, and certificates of deposit approximate their fair values at the reporting date. Fair values for fixed-rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits. Federal Funds Purchased and Securities Sold Under Agreements to Repurchase — The carrying amount of federal funds purchased, borrowings under repurchase agreements, and other short-term borrowings maturing within ninety days approximate their fair values. Other Borrowings — The fair value of other borrowings is estimated using discounted cash flow analysis on our current incremental borrowing rates for similar types of instruments. Accrued Interest — The carrying amounts of accrued interest approximate fair value. Derivative Financial Instruments — The fair value of derivative financial instruments (including interest rate swaps) is estimated using pricing models of derivatives with similar characteristics or discounted cash flow models where future floating cash flows are projected and discounted back. Commitments to Extend Credit, Standby Letters of Credit and Financial Guarantees — The fair values of commitments to extend credit are estimated taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair values of guarantees and letters of credit are based on fees currently charged for similar agreements or on the estimated costs to terminate them or otherwise settle the obligations with the counterparties at the reporting date. The estimated fair value, and related carrying amount, of our financial instruments are as follows: Carrying Fair (Dollars in thousands) Amount Value Level 1 Level 2 Level 3 March 31, 2019 Financial assets: Cash and cash equivalents $ 949,591 $ 949,591 $ 949,591 $ — $ — Investment securities 1,506,873 1,506,873 40,624 1,466,249 — Loans held for sale 22,925 22,925 — 22,925 — Loans, net of allowance for loan losses 11,089,600 11,005,731 — — 11,005,731 Accrued interest receivable 36,965 36,965 524 5,891 30,550 Mortgage servicing rights 32,415 32,415 — — 32,415 Interest rate swap - non-designated hedge 6,672 6,672 — 6,672 — Interest rate swap - cash flow hedge 217 217 — 217 — Other derivative financial instruments (mortgage banking related) 1,838 1,838 — 1,838 — Financial liabilities: Deposits 11,918,971 10,956,761 — 10,956,761 — Federal funds purchased and securities sold under agreements to repurchase 276,891 276,891 — 276,891 — Other borrowings 616,250 619,140 — 619,140 — Accrued interest payable 5,688 5,688 — 5,688 — Interest rate swap - non-designated hedge 7,403 7,403 — 7,403 — Interest rate swap - cash flow hedge 2,927 2,927 — 2,927 — Off balance sheet financial instruments: Commitments to extend credit — (21,189) — (21,189) — December 31, 2018 Financial assets: Cash and cash equivalents $ 408,983 $ 408,983 $ 408,983 $ — $ — Investment securities 1,542,671 1,542,671 25,604 1,517,067 — Loans held for sale 22,925 22,925 — 22,925 — Loans, net of allowance for loan losses 10,962,037 10,613,571 — — 10,613,571 Accrued interest receivable 35,997 35,997 — 6,908 29,089 Mortgage servicing rights 34,727 34,727 — — 34,727 Interest rate swap - non-designated hedge 3,824 3,824 — 3,824 — Other derivative financial instruments (mortgage banking related) 1,267 1,267 — 1,267 — Financial liabilities: Deposits 11,646,933 10,561,394 — 10,561,394 — Federal funds purchased and securities sold under agreements to repurchase 270,649 270,649 — 270,649 — Other borrowings 266,084 269,134 — 269,134 — Accrued interest payable 4,719 4,719 — 4,719 — Interest rate swap - non-designated hedge 4,373 4,373 — 4,373 — Interest rate swap - cash flow hedge — — Off balance sheet financial instruments: Commitments to extend credit — (88,424) — (88,424) — March 31, 2018 Financial assets: Cash and cash equivalents $ 644,504 $ 644,504 $ 644,504 $ — $ — Investment securities 1,665,590 1,665,600 23,479 1,642,121 — Loans held for sale 42,690 42,690 — 42,690 — Loans, net of allowance for loan losses 10,589,521 10,419,134 — — 10,419,134 Accrued interest receivable 31,175 31,175 — 6,661 24,514 Mortgage servicing rights 34,196 34,196 — — 34,196 Interest rate swap - non-designated hedge — — Other derivative financial instruments (mortgage banking related) 1,665 1,665 — 1,665 — Financial liabilities: Deposits 11,663,098 10,780,965 — 10,780,965 — Federal funds purchased and securities sold under agreements to repurchase 357,574 357,574 — 357,574 — Other borrowings 215,589 219,037 — 219,037 — Accrued interest payable 3,563 3,563 — 3,563 — Interest rate swap - cash flow hedge — — Interest rate swap - non-designated hedge 5,932 5,932 — 5,932 — Off balance sheet financial instruments: Commitments to extend credit — (48,841) — (48,841) —

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)	Note 14 — Accumulated Other Comprehensive Income (Loss) The changes in each components of accumulated other comprehensive income (loss), net of tax, were as follows: Unrealized Gains and Losses Gains and on Securities Losses on Benefit Available Cash Flow (Dollars in thousands) Plans for Sale Hedges Total Three Months Ended March 31, 2019 Balance at December 31, 2018 $ (6,450) $ (18,394) $ (37) $ (24,881) Other comprehensive gain (loss) before reclassifications — 13,066 (2,068) 10,998 Amounts reclassified from accumulated other comprehensive income (loss) 95 422 (8) 509 Net comprehensive income (loss) 95 13,488 (2,076) 11,507 Balance at March 31, 2019 $ (6,355) $ (4,906) $ (2,113) $ (13,374) Three Months Ended March 31, 2018 Balance at December 31, 2017 $ (5,998) $ (4,278) $ (151) $ (10,427) Other comprehensive income (loss) before reclassifications — (17,192) 28 (17,164) Amounts reclassified from accumulated other comprehensive income 151 — 37 188 Net comprehensive income (loss) 151 (17,192) 65 (16,976) AOCI reclassification to retained earnings from the adoption of ASU 2018-02 (1,760) (1,147) (40) (2,947) Balance at March 31, 2018 $ (7,607) $ (22,617) $ (126) $ (30,350) The table below presents the reclassifications out of accumulated other comprehensive income (loss), net of tax: Amount Reclassified from Accumulated Other Comprehensive Income (Loss) (Dollars in thousands) For the Three Months Ended March 31, Accumulated Other Comprehensive Income (Loss) Component 2019 2018 Income Statement Losses on cash flow hedges: Interest rate contracts $ (10) $ 47 Interest expense 2 (10) Provision for income taxes (8) 37 Net income Gains on sales of available for sale securities: $ 541 $ — Securities gains, net (119) — Provision for income taxes 422 — Net income Amortization of defined benefit pension: Actuarial losses $ 121 $ 194 Salaries and employee benefits (26) (43) Provision for income taxes 95 151 Net income Total reclassifications for the period $ 509 $ 188

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2019
Derivative Financial Instruments
Derivative Financial Instruments	Note 15 — Derivative Financial Instruments We use certain derivative instruments to meet the needs of its customers as well as to manage the interest rate risk associated with certain transactions. The following table summarizes the derivative financial instruments utilized by the Company: March 31, 2019 March 31, 2018 Balance Sheet Notional Estimated Fair Value Notional Estimated Fair Value (Dollars in thousands) Location Amount Gain Loss Amount Gain Loss Cash flow hedges of interest rate risk on Junior Subordinated Debt: Pay fixed rate swap with counterparty Other Liabilities $ 8,000 $ — $ 25 $ 8,000 $ — $ 162 Cash flow hedges of interest rate risk on FHLB Advances: Pay fixed rate swap with counterparty Other Assets and Other Liabilities $ 500,000 $ 217 $ 2,902 $ — $ — $ — Fair value hedge of interest rate risk: Pay fixed rate swap with counterparty Other Assets $ 2,799 $ — $ 108 $ 2,824 $ — $ 21 Not designated hedges of interest rate risk: Customer related interest rate contracts: Matched interest rate swaps with borrowers Other Assets and Other Liabilities $ 355,045 $ 6,112 $ 2,137 $ 282,047 $ 146 $ 5,908 Matched interest rate swaps with counterparty Other Assets and Other Liabilities $ 355,045 $ 560 $ 5,158 $ 282,047 $ 5,609 $ 3 Not designated hedges of interest rate risk - mortgage banking activities: Contracts used to hedge mortgage servicing rights Other Assets $ 129,000 $ 1,100 $ — $ 69,000 $ 390 $ — Forward sales commitments used to hedge mortgage pipeline Other Assets $ 80,059 $ 738 $ — $ 98,860 1,275 $ — Total derivatives $ 1,429,948 $ 8,727 $ 10,330 $ 742,778 $ 7,420 $ 6,094 Cash Flow Hedge of Interest Rate Risk We are exposed to interest rate risk in the course of its business operations and manages a portion of this risk through the use of derivative financial instruments, in the form of interest rate swaps. We account for interest rate swaps that are classified as cash flow hedges in accordance with FASB ASC 815, Derivatives and Hedging , which requires that all derivatives be recognized as assets or liabilities on the balance sheet at fair value. We have three cash flow hedges as of March 31, 2019. For more information regarding the fair value of our derivative financial instruments, see Note 13 to these financial statements. For one cash flow hedge, we utilize an interest rate swap agreement to essentially convert a portion of its variable-rate debt to a fixed rate (cash flow hedge). During 2009, we entered into a forward starting interest rate swap agreement with a notional amount of $8.0 million to manage interest rate risk due to periodic rate resets on its junior subordinated debt issued by SCBT Capital Trust II, an unconsolidated subsidiary of the Company established for the purpose of issuing trust preferred securities. We hedge the variable rate cash flows of subordinated debt against future interest rate increases by using an interest rate swap that effectively fixed the rate on the debt beginning on June 15, 2010, at which time the debt contractually converted from a fixed interest rate to a variable interest rate. This hedge expires on June 15, 2019. The notional amount on which the interest payments are based will not be exchanged. This derivatives contract calls for us to pay a fixed rate of 4.06% on the $8.0 million notional amount and receive a variable rate of three-month LIBOR on the $8.0 million notional amount. For the other two cash flow hedges, we utilize interest rate swap agreements to manage interest rate risk related to funding through short term FHLB advances. In March 2019, we entered into three month FHLB advances for $350 million and $150 million for which at this time we plan to continuously renew. At the same time, we entered into interest rate swap agreements with a notional amount of $350 million and $150 million to manage the interest rate risk related to these FHLB advances. With our plan to continually renew and reprice the FHLB advances every three months, we are treating this funding as variable rate funding. We are hedging the cash flows from these FHLB advances against future interest rate increases by using an interest rate swap that effectively fixed the rate on the debt, which began in March 2019. The notional amount on which the interest payments are based will not be exchanged related to these interest rate swaps. The derivative contract on the $350 million notational amount calls for us to pay a fixed rate of 2.44% and receive a variable rate of three-month LIBOR (2.63% at March 31, 2019). The derivative contract on the $150 million notational amount calls for us to pay a fixed rate of 2.21% and receive a variable rate of three-month LIBOR (2.60% at March 31, 2019). The hedge for $350 million expires on March 23, 2023 and the hedge for $150 million expires on March 29, 2024. For derivatives designated as hedging exposure to variable cash flows of a forecasted transaction (cash flow hedge), the derivative’s entire gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings when the forecasted transaction affects earnings or when the hedge is terminated. For derivatives that are not designated as hedging instruments, changes in the fair value of the derivatives are recognized in earnings immediately. For designated hedging relationships, we have a third party perform retrospective and prospective effectiveness testing on a quarterly basis using quantitative methods to determine if the hedge is still highly effective. Hedge accounting ceases on transactions that are no longer deemed highly effective, or for which the derivative has been terminated or de-designated. We recognized an after-tax unrealized loss on our cash flow hedges in other comprehensive income of $2.1 million for the three months ended March 31, 2019. This compares to an unrealized gain of $65,000 for the three months ended March 31, 2018. We recognized a $2.9 million cash flow hedge liability in other liabilities and a $217,000 cash flow hedge asset in other assets on the balance sheet at March 31, 2019, as compared to a $162,000 liability at March 31, 2018. There was no ineffectiveness in the cash flow hedge during the three months ended March 31, 2018. (See Note 14 – Accumulated Other Comprehensive Income (Loss) for activity in accumulated comprehensive income (loss) and the amounts reclassified into earnings related the cash flow hedges.) Credit risk related to the derivative arises when amounts receivable from the counterparty (derivatives dealer) exceed those payable. We control the risk of loss by only transacting with derivatives dealers that are national market makers whose credit ratings are strong. Each party to the interest rate swap is required to provide collateral in the form of cash or securities to the counterparty when the counterparty’s exposure to a mark-to-market replacement value exceeds certain negotiated limits. These limits are typically based on current credit ratings and vary with ratings changes. As of both March 31, 2019 and 2018, we provided $300,000 of collateral, respectively, on the cash flow hedge on the junior subordinated debt which is included in cash and cash equivalents on the balance sheet as interest-bearing deposits with banks. As of March 31, 2019, the Company provided $8.0 million of collateral on the cash flow hedges on the FHLB advances which is also included in cash and cash equivalents on the balance sheet as interest-bearing deposits with banks. Also, we have a netting agreement with the counterparties. Balance Sheet Fair Value Hedge We maintain one loan swap, with an aggregate notional amount of $2.8 million at March 31, 2019, accounted for as fair value hedges in accordance with ASC 815, Derivatives and Hedgin g. This derivative protects us from interest rate risk caused by changes in the LIBOR curve in relation to a certain designated fixed rate loan. The derivative converts the fixed rate loan to a floating rate. Settlement occurs in any given period where there is a difference in the stated fixed rate and variable rate. The fair value of this hedge is recorded in either other assets or in other liabilities depending on the position of the hedge. All changes in fair value are recorded through earnings as noninterest income. There was no gain or loss recorded on this derivative for the three months ended March 31, 2019 or 2018. Non-designated Hedges of Interest Rate Risk Customer Swap We maintain interest rate swap contracts with customers that are classified as non-designated hedges and are not speculative in nature. These agreements are designed to convert customer’s variable rate loans with the Company to fixed rate. These interest rate swaps are executed with loan customers to facilitate a respective risk management strategy and allow the customer to pay a fixed rate of interest to the Company. These interest rate swaps are simultaneously hedged by executing offsetting interest rate swaps with unrelated market counterparties to minimize the net risk exposure to the Company resulting from the transactions and allow the Company to receive a variable rate of interest. The interest rate swaps pay and receive interest based on a floating rate based on one month LIBOR plus credit spread, with payments being calculated on the notional amount. The interest rate swaps are settled monthly with varying maturities. As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings. As of March 31, 2019, the interest rate swaps had an aggregate notional amount of approximately $710.0 million and the fair value of the interest rate swap derivatives are recorded in other assets at $6.7 million and in other liabilities at $7.3 million for a net liability position of $622,000, which was recorded through earnings. The fair value of the interest rate swap derivative with the derivatives dealer was in a net liability position of $156,000 at March 31, 2018. Foreign Exchange We also enter into foreign exchange contracts with customers to accommodate their need to convert certain foreign currencies into to U.S. Dollars. To offset the foreign exchange risk, we have entered into substantially identical agreements with an unrelated market counterparty to hedge these foreign exchange contracts. At March 31, 2019, there were no outstanding contracts or agreements related to foreign currency. If there were foreign currency contracts outstanding March 31, 2019, the fair value of these contracts would be included in other assets and other liabilities in the accompanying balance sheet. All changes in fair value are recorded as other noninterest income. There was no gain or loss recorded related to the foreign exchange derivative for the three months ended March 31, 2019 or 2018. Mortgage Banking We also have derivatives contracts that are classified as non-designated hedges. These derivatives contracts are a part of our risk management strategy for its mortgage banking activities. These instruments may include financial forwards, futures contracts, and options written and purchased, which are used to hedge MSRs; while forward sales commitments are typically used to hedge the mortgage pipeline. Such instruments derive their cash flows, and therefore their values, by reference to an underlying instrument, index or referenced interest rate. We do not elect hedge accounting treatment for any of these derivative instruments and as a result, changes in fair value of the instruments (both gains and losses) are recorded in our consolidated statements of income in mortgage banking income. Mortgage Servicing Rights Derivatives contracts related to MSRs are used to help offset changes in fair value and are written in amounts referred to as notional amounts. Notional amounts provide a basis for calculating payments between counterparties but do not represent amounts to be exchanged between the parties, and are not a measure of financial risk. On March 31, 2019, we had derivative financial instruments outstanding with notional amounts totaling $129.0 million related to MSRs, compared to $69.0 million on March 31, 2018. The estimated net fair value of the open contracts related to the MSRs was recorded as a gain of $1.1 million at March 31, 2019, compared to a gain of $390,000 at March 30, 2018. Mortgage Pipeline The following table presents our notional value of forward sale commitments and the fair value of those obligations along with the fair value of the mortgage pipeline. (Dollars in thousands) March 31, 2019 December 31, 2018 March 31, 2018 Mortgage loan pipeline $ 95,731 $ 50,442 $ 92,647 Expected closures 71,798 37,832 69,485 Fair value of mortgage loan pipeline commitments 1,364 705 1,190 Forward sales commitments 80,059 54,533 98,860 Fair value of forward commitments 85

Capital Ratios

Capital Ratios	3 Months Ended
	Mar. 31, 2019
Capital Ratios
Capital Ratios	Note 16 — Capital Ratios We are subject to regulations with respect to certain risk-based capital ratios. These risk-based capital ratios measure the relationship of capital to a combination of balance sheet and off-balance sheet risks. The values of both balance sheet and off-balance sheet items are adjusted based on the rules to reflect categorical credit risk. In addition to the risk-based capital ratios, the regulatory agencies have also established a leverage ratio for assessing capital adequacy. The leverage ratio is equal to Tier 1 capital divided by total consolidated on-balance sheet assets (minus amounts deducted from Tier 1 capital). The leverage ratio does not involve assigning risk weights to assets. In July 2013, the Federal Reserve announced its approval of a final rule to implement the regulatory capital reforms developed by the Basel Committee on Banking Supervision (“Basel III”), among other changes required by the Dodd-Frank Wall Street Reform and Consumer Protection Act. The new rules became effective January 1, 2015, subject to a phase-in period for certain aspects of the new rules. As applied to the Company and the Bank, the new rules include a new minimum ratio of common equity Tier 1 capital (“CET1”) to risk-weighted assets of 4.5%. The new rules also raised the minimum required ratio of Tier 1 capital to risk-weighted assets from 4% to 6%. The minimum required leverage ratio under the new rules is 4%. The minimum required total capital to risk-weighted assets ratio remains at 8% under the new rules. In order to avoid restrictions on capital distributions and discretionary bonus payments to executives, under the new rules a covered banking organization is also required to maintain a “capital conservation buffer” in addition to its minimum risk-based capital requirements. This buffer is required to consist solely of CET1, and the buffer applies to all three risk-based measurements (CET1, Tier 1 capital and total capital). The capital conservation buffer was phased in incrementally over time, beginning January 1, 2016 and become fully effective on January 1, 2019. The fully phased-in capital conservation buffer consists of an additional amount of Tier 1 common equity equal to 2.5% of risk-weighted assets. The Bank is also subject to the regulatory framework for prompt corrective action, which identifies five capital categories for insured depository institutions (well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized) and is based on specified thresholds for each of the three risk-based regulatory capital ratios (CET1, Tier 1 capital and total capital) and for the leverage ratio. The following table presents actual and required capital ratios as of March 31, 2019, December 31, 2018 and March 30, 2018 for the Company and the Bank under the Basel III capital rules. The minimum required capital amounts presented below include the minimum required capital levels based on the phase-in provisions of the Basel III Capital Rules. The minimum required capital levels plus the capital conservation buffer under the Basel III capital rules became fully phased-in as of January 1, 2019. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Minimum Capital Minimum Capital Required to be Required - Basel III Required - Basel III Considered Well Actual Phase-In Schedule Fully Phased In Capitalized (Dollars in thousands) Amount Ratio Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio March 31, 2019 Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,338,085 11.86 % $ 789,903 7.00 % $ 789,903 7.00 % $ 733,481 6.50 % South State Bank (the Bank) 1,429,219 12.67 % 789,867 7.00 % 789,867 7.00 % 733,448 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,449,854 12.85 % 959,168 8.50 % 959,168 8.50 % 902,746 8.00 % South State Bank (the Bank) 1,429,219 12.67 % 959,125 8.50 % 959,125 8.50 % 902,706 8.00 % Total capital to risk-weighted assets: Consolidated 1,506,710 13.35 % 1,184,855 10.50 % 1,184,855 10.50 % 1,128,433 10.00 % South State Bank (the Bank) 1,486,075 13.17 % 1,184,801 10.50 % 1,184,801 10.50 % 1,128,382 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,449,854 10.52 % 551,366 4.00 % 551,366 4.00 % 689,207 5.00 % South State Bank (the Bank) 1,429,219 10.37 % 551,218 4.00 % 551,218 4.00 % 689,022 5.00 % December 31, 2018: Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,335,826 12.05 % $ 706,981 6.38 % $ 776,293 7.00 % $ 720,844 6.50 % South State Bank (the Bank) 1,427,764 12.87 % 707,039 6.38 % 776,356 7.00 % 720,902 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,447,428 13.05 % 873,330 7.88 % 942,642 8.50 % 887,192 8.00 % South State Bank (the Bank) 1,427,764 12.87 % 873,401 7.88 % 942,718 8.50 % 887,264 8.00 % Total capital to risk-weighted assets: Consolidated 1,503,561 13.56 % 1,095,128 9.88 % 1,164,440 10.50 % 1,108,990 10.00 % South State Bank (the Bank) 1,483,897 13.38 % 1,095,217 9.88 % 1,164,534 10.50 % 1,109,080 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,447,428 10.65 % 543,506 4.00 % 543,506 4.00 % 679,383 5.00 % South State Bank (the Bank) 1,427,764 10.51 % 543,387 4.00 % 543,387 4.00 % 679,234 5.00 % March 31, 2018: Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,295,729 11.85 % $ 697,237 6.38 % $ 765,594 7.00 % $ 710,909 6.50 % South State Bank (the Bank) 1,385,289 12.67 % 697,253 6.38 % 765,612 7.00 % 710,925 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,406,832 12.86 % 861,293 7.88 % 929,650 8.50 % 874,964 8.00 % South State Bank (the Bank) 1,385,289 12.67 % 861,313 7.88 % 929,671 8.50 % 874,985 8.00 % Total capital to risk-weighted assets: Consolidated 1,456,453 13.32 % 1,080,034 9.88 % 1,148,391 10.50 % 1,093,706 10.00 % South State Bank (the Bank) 1,434,911 13.12 % 1,080,059 9.88 % 1,148,417 10.50 % 1,093,731 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,406,832 10.50 % 535,724 4.00 % 535,724 4.00 % 669,654 5.00 % South State Bank (the Bank) 1,385,289 10.35 % 535,522 4.00 % 535,522 4.00 % 669,402 5.00 % As of March 31, 2019, December 31, 2018, and March 30, 2018, the capital ratios of the Company and the Bank were well in excess of the minimum regulatory requirements and exceeded the thresholds for the “well capitalized” regulatory classification.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2019
Goodwill and Other Intangible Assets
Goodwill and Other Intangible Assets	Note 17—Goodwill and Other Intangible Assets The carrying amount of goodwill was $1.0 billion at March 31, 2019. Our other intangible assets, consisting of core deposit intangibles, noncompete intangibles, and client list intangibles are included on the face of the balance sheet. The following is a summary of gross carrying amounts and accumulated amortization of other intangible assets: March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Gross carrying amount $ 119,501 $ 121,736 $ 118,415 Accumulated amortization (59,882) (58,836) (48,039) $ 59,619 $ 62,900 $ 70,376 Amortization expense totaled $3.3 million for the three months ended March 31, 2019, respectively, compared to $3.4 million for the three months ended March 31, 2018, respectively. Other intangibles are amortized using either the straight-line method or an accelerated basis over their estimated useful lives, with lives generally between two and 15 years. Estimated amortization expense for other intangibles for each of the next five quarters is as follows: (Dollars in thousands) Quarter ending: June 30, 2019 $ 3,268 September 30, 2019 3,268 December 31, 2019 3,267 March 31, 2020 3,007 June 30, 2020 2,995 Thereafter 43,814 $ 59,619

Loan Servicing, Mortgage Origin

Loan Servicing, Mortgage Origination, and Loans Held for Sale	3 Months Ended
	Mar. 31, 2019
Loan Servicing, Mortgage Origination, and Loans Held for Sale
Loan Servicing, Mortgage Origination, and Loans Held for Sale	Note 18 — Loan Servicing, Mortgage Origination, and Loans Held for Sale As of March 31, 2019, December 31, 2018, and March 31, 2018, the portfolio of residential mortgages serviced for others, which is not included in the accompanying balance sheets, was $3.1 billion, $3.1 billion, and $3.0 billion, respectively. Servicing loans for others generally consists of collecting mortgage payments, maintaining escrow accounts and disbursing payments to investors. The amount of contractually specified servicing fees we earned during both the three months ended March 31, 2019 and March 31, 2018 was $1.9 million. Servicing fees are recorded in mortgage banking income in our consolidated statements of income. At March 31, 2019, December 31, 2018, and March 31, 2018, MSRs were $32.4 million, $34.7 million, and $34.2 million on our consolidated balance sheets, respectively. MSRs are recorded at fair value with changes in fair value recorded as a component of mortgage banking income in the consolidated statements of income. The market value adjustments related to MSRs recorded in mortgage banking income for the three months ended March 31, 2019 and March 31, 2018 were losses of $2.4 million and gains of $2.5 million, respectively. We used various free standing derivative instruments to mitigate the income statement effect of changes in fair value due to changes in market value adjustments and to changes in valuation inputs and assumptions related to MSRs. See Note 13 — Fair Value for the changes in fair value of MSRs. The following table presents the changes in the fair value of the offsetting hedge. Three Months Ended (Dollars in thousands) March 31, 2019 March 31, 2018 Increase (decrease) in fair value of MSRs $ $ 2,516 Decay of MSRs (929) Gain (loss) related to derivatives (1,554) Net effect on statements of income $ $ 33 The fair value of MSRs is highly sensitive to changes in assumptions and fair value is determined by estimating the present value of the asset’s future cash flows utilizing market-based prepayment rates, discount rates and other assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Changes in prepayment speed assumptions have the most significant impact on the fair value of MSRs. Generally, as interest rates increase, mortgage loan prepayments decelerate due to decreased refinance activity, which results in an increase in the fair value of the MSRs. Measurement of fair value is limited to the conditions existing and the assumptions utilized as of a particular point in time, and those assumptions may not be appropriate if they are applied at a different time. See Note 13 — Fair Value for additional information regarding fair value. The characteristics and sensitivity analysis of the MSRs are included in the following table. March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Composition of residential loans serviced for others Fixed-rate mortgage loans 99.8 % 99.8 % 99.7 % Adjustable-rate mortgage loans 0.2 % 0.2 % 0.3 % Total 100.0 % 100.0 % 100.0 % Weighted average life 7.08 years 7.88 years 8.45 years Constant Prepayment rate (CPR) 8.8 % 7.3 % 6.3 % Weighted average discount rate 9.4 % 9.4 % 9.6 % Effect on fair value due to change in interest rates 25 basis point increase $ 2,044 $ 1,504 $ 1,025 50 basis point increase 3,747 2,740 1,791 25 basis point decrease (2,438) (1,981) (1,439) 50 basis point decrease (5,171) (4,421) (3,189) The sensitivity calculations in the previous table are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the changes in assumptions to fair value may not be linear. Also, the effects of an adverse variation in a particular assumption on the fair value of the MSRs is calculated without changing any other assumptions, while in reality, changes in one factor may result in changing another, which may magnify or contract the effect of the change. Custodial escrow balances maintained in connection with the loan servicing were $22.1 million and $20.9 million at March 31, 2019 and March 31, 2018, respectively. Whole loan sales were $115.3 million and $154.9 million for the three months ended March 31, 2019 and March 31, 2018, respectively. For the three months ended March 31, 2019 and March 31, 2018, $89.1 million and $118.4 million, or 77.3% and 76.5%, respectively, were sold with the servicing rights retained by the company. Loans held for sale have historically been comprised of residential mortgage loans awaiting sale in the secondary market, which generally settle in 15 to 45 days. Loans held for sale were $33.3 million, $22.9 million and $42.7 million at March 31, 2019, December 31, 2018 and March 31, 2018, respectively.

Investments in Qualified Afford

Investments in Qualified Affordable Housing Projects	3 Months Ended
	Mar. 31, 2019
Investment In Qualified Affordable Housing Projects.
Investment in Qualified Affordable Housing Projects	Note 19 – Investments in Qualified Affordable Housing Projects We have investments in qualified affordable housing projects (“QAHPs”) that provide low income housing tax credits and operating loss benefits over an extended period. The tax credits and the operating loss tax benefits that are generated by each of the properties are expected to exceed the total value of the investment made by the Company. For the three months ended March 31, 2019, tax credits and other tax benefits of $1.5 million and amortization of $1.5 million were recorded. For the three months ended March 31, 2018, we recorded tax credits and other tax benefits of $1.2 million and amortization of $1.0 million. At March 31, 2019 and 2018, our carrying value of QAHPs was $54.2 million and $38.7 million, respectively, with an original investment of $69.6 million. We have $24.0 million and $17.9 million in remaining funding obligations related to these QAHPs recorded in liabilities at March 31, 2019 and 2018, respectively. None of the original investment will be repaid. The investment in QAHPs is being accounted for using the equity method.

Repurchase Agreements

Repurchase Agreements	3 Months Ended
	Mar. 31, 2019
Repurchase Agreements
Repurchase Agreements	Note 20 – Repurchase Agreements Securities sold under agreements to repurchase (“repurchase agreements”) represent funds received from customers, generally on an overnight or continuous basis, which are collateralized by investment securities owned or, at times, borrowed and re-hypothecated by the Company. Repurchase agreements are subject to terms and conditions of the master repurchase agreements between the Company and the client and are accounted for as secured borrowings. Repurchase agreements are included in federal funds purchased and securities sold under agreements to repurchase on the condensed consolidated balance sheets. At March 31, 2019, December 31, 2018 and March 31, 2018, our repurchase agreements totaled $218.8 million, $205.3 million, and $269.5 million, respectively. All of our repurchase agreements were overnight or continuous (until-further-notice) agreements at March 31, 2019, December 31, 2018 and March 31, 2018. These borrowings were collateralized with government, government-sponsored enterprise, or state and political subdivision-issued securities with a carrying value of $218.8 million, $205.3 million and $269.5 million at March 31, 2019, December 31, 2018 and March 31, 2018, respectively. Declines in the value of the collateral would require us to increase the amounts of securities pledged.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2019
Subsequent Events
Subsequent Events	Note 21 – Subsequent Events On January 25, 2019, the Board of Directors approved and reset the number of shares available to be repurchased to 1,000,000 common shares under the 2019 Stock Repurchase Program (“Repurchase Program”). In the first quarter of 2019, we repurchased 500,000 shares at an average price of $66.53 a share for a total of $33. 3 million in common stock. In May 2019, we repurchased an additional 250,000 shares at an average price of $75.15 a share for a total of $18.8 million in common stock. We may repurchase up to an additional 250,000 shares of common stock under the Repurchase Program . We are not obligated to repurchase any additional shares under the Repurchase Program, and any repurchases under the Repurchase Program after December 23, 2019 would require additional Federal Reserve approval. We have evaluated subsequent events for accounting and disclosure purposes through the date the financial statements are issued and have determined that there is no additional disclosure necessary.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Summary of Significant Accounting Policies
Leases	Leases (Topic 842) and Method of Adoption On January 1, 2019, we adopted the requirements of Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842). Topic 842 was subsequently amended by ASU No. 2018-01, Land Easement Practical Expedient for Transition to Topic 842; ASU No. 2018-10, Codification Improvements to Topic 842, Leases; ASU No. 2018-11, Targeted Improvements; and ASU No. 2019-01, Codification Improvements to Topic 842 Leases. The purpose of the update was to increase transparency and comparability between organizations that enter into lease agreements. The key difference between the previous guidance and the update is the recognition of a right-of-use asset (ROU) and lease liability on the statement of financial position for those leases previously classified as operating leases under the old guidance. Accounting Standards Codification (“ASC”) Topic 842 defines a lease as a contract, or part of a contract, that conveys the right to control the use of identified property, plant, or equipment (an identified asset) for a period of time in exchange for consideration. In applying this standard, we reviewed our material contracts to determine if they included a lease by this new definition and did not identify any new leases. Our lease agreements in which ASC Topic 842 has been applied are primarily for real estate properties, including retail branch locations, operations and administration locations and stand-alone ATM locations. These leases have lease terms from greater than 12 months to leases with options of more than 24 years. Related to lease payment terms, some are fixed payments or based on a fixed annual increases while others are variable and the annual increases are based on market rates. We performed an analysis on equipment leases for the implementation of ASC Topic 842 and determined the number and dollar amount of our equipment leases was not material. A modified retrospective transition approach is required, applying the new standard to all leases existing at the date of initial application. An entity may choose to use either (1) its effective date or (2) the beginning of the earliest comparative period presented in the financial statements as its date of initial application. We chose the transition method of adoption provided by ASU 2018-11, Leases (Topic 842) – Targeted Improvements, where we initially apply the new lease standard at the effective date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption if applicable. Therefore, we will apply this standard to all existing leases as of the adoption date of January 1, 2019, recording a ROU asset and a lease liability in an equal amount. We did not have a cumulative-effect adjustment to the opening balance of retained earnings. With this transition method, we will not have to restate comparative prior periods presented in the financial statements related to ASC Topic 842, but will present comparative prior periods disclosures using the previous accounting guidance for leases. This adoption method is considered a change in accounting principle requiring additional disclosure of the nature of and reason for the change, which is solely a result of the adoption of the required standard. ASC Topic 842 provides a package of practical expedients in applying the lease standard that had to be chosen at the date of adoption. We chose to elect this package of practical expedients. With this election, we do not have to reassess whether any expired or existing contracts are or contain a lease, do not have to reassess the classification of any expired or existing leases, do not have to separate lease and non-lease components and can account for both as a single lease component, and do not have to reassess initial direct costs or cash incentives for any existing leases due to immateriality. In addition, we chose not to apply ASC Topic 842 to short-term leases (leases with terms of 12 months or less) and not to record an underlying ROU asset or lease liability based on the uncertainty around the renewal of these leases. We will recognize lease expense for such leases on a straight-line basis over the lease term. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. We determined that we do not have any leases classified as finance leases and that all of our leases are operating leases. ROU assets and liabilities for operating leases are recognized at commencement date based on present value of lease payments not yet paid, discounted using the discount rate for the lease at the lease commencement date over the lease term. For operating leases, lease expense is determined by the sum of the lease payments to be recognized on a straight-line basis over the lease term. Based on the transition method that we chose to follow, the commencement date of the lease term for all existing leases is January 1, 2019. The lease term used for the calculation of the initial ROU asset and lease liability will include the initial lease term in addition to any renewal options or termination costs in the lease that we think are reasonably certain to be exercised or incurred. We received input from several levels of management and our corporate real estate department in determining which options were reasonably certain to be exercised. A discount rate is also needed in the calculation of the initial ROU assets and lease liability. ASC Topic 842 requires that the implicit rate within the lease agreement be used if available. If not available, we should use its incremental borrowing rate in effect at the time of the lease commencement date. We looked at the incremental borrowing rate from several of our borrowing sources to determine an average rate to be used in the calculation of the initial ROU asset and lease liability. We also considered the term of the borrowings as they relate to the terms of the leases. The adoption of the new standard had a material impact on our consolidated balance sheet, with the recording of ROU asset and lease liability of $82.2 million at the commencement date of January 1, 2019. We did not have a cumulative-effect adjustment to the opening balance of retained earnings at commencement. As of March 31, 2019, we had ROU assets of $82.8 million recorded within premises and equipment on the balance sheet and a lease liability of $83.0 million recorded within other liabilities on the balance sheet. The adoption of ASC Topic 842 did not have a material impact on our consolidated income statement.
Revenue from Contracts with Customers (Topic 606) and Method of Adoption	Revenue from Contracts with Customers (Topic 606) and Method of Adoption On January 1, 2018, we adopted the requirements of ASU 2014-09, Revenue from Contracts with Customers (“Topic 606”). The majority of our revenue is derived primarily from interest income from receivables (loans) and securities. Other revenues are derived from fees received in connection with deposit accounts, mortgage banking activities including gains from the sale of loans and loan origination fees, and trust and investment advisory services. The core principle of the new standard is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. We adopted Topic 606 using the retrospective transition approach which requires restatement of prior periods. We selected this method even though there were no material changes in the timing of revenue recognition due to the fact that Topic 606 requires us to report network costs associated with debit card and ATM transactions netted against the related fees from such transactions. Previously, such network costs were reported as a component of other noninterest expense. We did restate prior periods for this reclassification. For the three months ended March 31, 2019, gross interchange and debit card transaction fees totaled $5.5 million while related network costs totaled $2.9 million. On a net basis we reported $2.6 million as interchange and debit card transactions fees in the accompanying Consolidated Statements of Income as noninterest income for the three months ended March 31, 2019. We also made this reclassification for the comparable period in 2018. For the three months ended March 31, 2018, gross interchange and debit card transaction fees totaled $10.6 million while related network costs totaled $3.0 million. On a net basis we reported $7.6 million as net interchange and debit card transactions fees as noninterest income for the three months ended March 31, 2018. This adoption method is considered a change in accounting principle requiring additional disclosure of the nature of and reason for the change, which is solely a result of the adoption of the required standard. When applying the retrospective approach under Topic 606, we elected, as a practical expedient, to apply the revenue standard only to contracts that are not completed as of January 1, 2018. A completed contract is considered to be a contract for which all (or substantially all) of the revenue was recognized in accordance with revenue guidance that was in effect before January 1, 2018. There were no uncompleted contracts as of January 1, 2018 for which application of the new standard required an adjustment to retained earnings. The following disclosures related to Topic 606 involve income derived from contracts with customers. Within the scope of Topic 606, we maintain contracts to provide services, primarily for investment advisory and/or custody of assets. Through our wholly-owned subsidiaries, the Bank and South State Advisory, Inc., we contract with our customers to perform IRA, Trust, and/or Custody and Agency advisory services. Total revenue recognized from these contracts with customers was $7.3 million and $7.5 million, respectively, for the three months ended March 31, 2019 and 2018. The Bank contracts with our customers to perform deposit account services. Total revenue recognized from these contracts with customers is $18.1 million and $25.8 million, respectively, for the three months ended March 31, 2019 and 2018. Due to the nature of our relationship with the customers that we provide services, we do not incur costs to obtain contracts and there are no material incremental costs to fulfill these contracts that should be capitalized. Disaggregation of Revenue - Our portfolio of services provided to our customers consists of approximately 816,000 active contracts at March 31, 2019 compared to approximately 791,000 at March 31, 2018. We have disaggregated revenue according to timing of the transfer of service. Total revenue derived from contracts in which services are transferred at a point in time was $24.1 million and $33.8 million, respectively, for the three months ended March 31, 2019 and 2018. Total revenue derived from contracts in which services are transferred over time was $5.0 million and $4.8 million, respectively, for the three months ended March 31, 2019 and 2018. Revenue is recognized as the services are provided to the customers. Economic factors impacting the customers could affect the nature, amount, and timing of these cash flows, as unfavorable economic conditions could impair the customers’ ability to provide payment for services. This risk is mitigated as we generally deduct payments from customers’ accounts as services are rendered. Contract Balances - The timing of revenue recognition, billings, and cash collections results in billed accounts receivable on our balance sheet. Most contracts call for payment by a charge or deduction to the respective customer account but there are some that require a receipt of payment from the customer. For fee per transaction contracts, the customers are billed as the transactions are processed. For hourly rate and monthly service contracts related to trust and some investment revenues, the customers are billed monthly (generally as a percentage basis point of the market value of the investment account). In some cases, specific to South State Advisory, Inc., customers are billed in advance for quarterly services to be performed based on the past quarter’s average account balance. These do create contract liabilities or deferred revenue, as the customers pay in advance for service. Neither the contract liabilities nor the accounts receivables balances are material to our balance sheet. Performance Obligations - A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in Topic 606. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. The performance obligations for these contracts are satisfied as the service is provided to the customer (either over time or at a point in time). The payment terms of the contracts are typically based on a basis point percentage of the investment account market value, fee per hour of service, or fee for service incurred. There are no significant financing components in the contracts. Excluding deposit services revenues which are mostly billed at a point in time as a fee for services incurred, all other contracts within the scope of Topic 606 contain variable consideration in that fees earned are derived from market values of accounts or from hours worked for services performed which determines the amount of consideration to which we are entitled. The variability is resolved when the hours are incurred or services are provided. The contracts do not include obligations for returns, refunds, or warranties. The contracts are specific to the amounts owed to the Company for services performed during a period should the contracts be terminated. Significant Judgments - All of the contracts create performance obligations that are satisfied at a point in time excluding the contracts billed in advance through South State Advisory, Inc. and some immaterial deposit revenues. Revenue is recognized as services are billed to the customers. Variable consideration does exist for contracts related to our trust and investment services as revenues are based on market values and services performed. We have adopted the right-to-invoice practical expedient for trust management contracts through the Bank which we contract with our customers to perform IRA, trust, and/or custody services.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2019
Investment Securities
Schedule of amortized cost and fair value of investment securities held to maturity	Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value March 31, 2019: State and municipal obligations $ — $ — $ — $ — December 31, 2018: State and municipal obligations $ — $ — $ — $ — March 31, 2018: State and municipal obligations $ 1,274 $ 10 $ — $ 1,284
Schedule of amortized cost and fair value of investment securities available for sale	Gross Gross Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value March 31, 2019: Government-sponsored entities debt* $ 65,567 $ 441 $ (304) $ 65,704 State and municipal obligations 190,302 3,170 (54) 193,418 Mortgage-backed securities** 1,216,669 1,991 (11,533) 1,207,127 $ 1,472,538 $ 5,602 $ (11,891) $ 1,466,249 December 31, 2018: Government-sponsored entities debt* $ 48,982 $ 21 $ (752) $ 48,251 State and municipal obligations 200,184 1,709 (1,125) 200,768 Mortgage-backed securities** 1,291,484 697 (24,133) 1,268,048 $ 1,540,650 $ 2,427 $ (26,010) $ 1,517,067 March 31, 2018: Government-sponsored entities debt* $ 91,483 $ — $ (1,737) $ 89,746 State and municipal obligations 224,994 2,232 (1,540) 225,686 Mortgage-backed securities** 1,353,356 248 (28,199) 1,325,405 $ 1,669,833 $ 2,480 $ (31,476) $ 1,640,837 * - Our government-sponsored entities holdings are comprised of debt securities offered by Federal Home Loan Mortgage Corporation (“FHLMC”) or Freddie Mac, Federal National Mortgage Association (“FNMA”) or Fannie Mae, Federal Home Loan Bank (“FHLB”), and Federal Farm Credit Banks (“FFCB”). ** - All of the mortgage-backed securities are issued by government-sponsored entities; there are no private-label holdings. Also, included in our mortgage-backed securities are debt securities offered by the Small Business Administration (“SBA”), which have the full faith and credit backing of the United States Government.
Schedule of amortized cost and carrying value of other investment securities	Carrying (Dollars in thousands) Value March 31, 2019: Federal Home Loan Bank stock $ 34,544 Investment in unconsolidated subsidiaries 3,563 Other nonmarketable investment securities 2,517 $ 40,624 December 31, 2018: Federal Home Loan Bank stock $ 19,524 Investment in unconsolidated subsidiaries 3,563 Other nonmarketable investment securities 2,517 $ 25,604 March 31, 2018: Federal Home Loan Bank stock $ 17,399 Investment in unconsolidated subsidiaries 3,563 Other nonmarketable investment securities 2,517 $ 23,479
Schedule of amortized cost and fair value of debt and equity securities by contractual maturity	Securities Securities Held to Maturity Available for Sale Amortized Fair Amortized Fair (Dollars in thousands) Cost Value Cost Value Due in one year or less $ — $ — $ 9,437 $ 9,415 Due after one year through five years — — 74,473 74,860 Due after five years through ten years — — 361,457 360,630 Due after ten years — — 1,027,171 1,021,344 $ — $ — $ 1,472,538 $ 1,466,249
Schedule of securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position	Less Than Twelve Months Twelve Months or More Gross Gross Unrealized Fair Unrealized Fair (Dollars in thousands) Losses Value Losses Value March 31, 2019: Securities Available for Sale Government-sponsored entities debt $ 49 $ 11,687 $ 255 $ 30,490 State and municipal obligations — — 54 10,310 Mortgage-backed securities 726 110,389 10,807 826,714 $ 775 $ 122,076 $ 11,116 $ 867,514 December 31, 2018: Securities Available for Sale Government-sponsored entities debt $ 100 $ 10,571 $ 652 $ 32,959 State and municipal obligations 760 40,387 365 14,231 Mortgage-backed securities 5,182 405,055 18,951 755,223 $ 6,042 $ 456,013 $ 19,968 $ 802,413 March 31, 2018: Securities Available for Sale Government-sponsored entities debt $ 918 $ 34,712 $ 819 $ 55,034 State and municipal obligations 1,523 69,118 17 724 Mortgage-backed securities 17,030 938,924 11,169 304,731 $ 19,471 $ 1,042,754 $ 12,005 $ 360,489

Loans and Allowance for Loan _2

Loans and Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2019
Loans and Allowance for Loan Losses
Schedule of changes in the carrying value	Three Months Ended March 31, (Dollars in thousands) 2019 2018 Balance at beginning of period $ 485,119 $ 618,803 Net reductions for payments, foreclosures, and accretion (32,951) (22,072) Change in the allowance for loan losses on acquired loans 90 543 Balance at end of period, net of allowance for loan losses on acquired loans $ 452,258 $ 597,274
Schedule of changes in allowance for loan losses	Non-acquired Acquired Non-Credit Acquired Credit (Dollars in thousands) Loans Impaired Loans Impaired Loans Total Three Months Ended March 31, 2019: Balance at beginning of period $ 51,194 $ — $ 4,604 $ 55,798 Loans charged-off (1,245) (374) — (1,619) Recoveries of loans previously charged off (1) 752 206 — 958 Net charge-offs (493) (168) — (661) Provision for loan losses charged to operations 1,307 168 13 1,488 Reduction due to loan removals — — (103) (103) Balance at end of period $ 52,008 $ — $ 4,514 $ 56,522 Three Months Ended March 31, 2018: Balance at beginning of period $ 43,448 $ — $ 4,627 $ 48,075 Loans charged-off (1,169) (334) — (1,503) Recoveries of loans previously charged off (1) 802 165 — 967 Net charge-offs (367) (169) — (536) Provision for loan losses charged to operations 2,122 169 163 2,454 Reduction due to loan removals — — (706) (706) Balance at end of period $ 45,203 $ — $ 4,084 $ 49,287 (1) – Recoveries related to acquired credit impaired loans are recorded through other noninterest income on the consolidated statement of income and do not run through the ALLL.
Summary of information pertaining to impaired loans	Unpaid Recorded Gross Contractual Investment Recorded Total Principal With No Investment Recorded Related (Dollars in thousands) Balance Allowance With Allowance Investment Allowance March 31, 2019 Commercial real estate: Construction and land development $ 38,668 $ 343 $ 37,914 $ 38,257 $ 786 Commercial non-owner occupied 514 99 276 375 60 Commercial owner occupied 5,158 3,130 1,090 4,220 21 Consumer real estate: Consumer owner occupied 7,462 5,223 1,662 6,885 37 Home equity loans 2,885 1,136 1,618 2,754 161 Commercial and industrial 1,357 — 1,315 1,315 420 Other income producing property 2,605 141 2,216 2,357 111 Consumer 200 — 110 110 3 Total $ 58,849 $ 10,072 $ 46,201 $ 56,273 $ 1,599 December 31, 2018 Commercial real estate: Construction and land development $ 38,314 $ 339 $ 37,574 $ 37,913 $ 788 Commercial non-owner occupied 1,157 536 489 1,025 70 Commercial owner occupied 5,085 3,101 1,041 4,142 27 Consumer real estate: Consumer owner occupied 7,291 4,992 1,769 6,761 41 Home equity loans 2,953 1,129 1,697 2,826 142 Commercial and industrial 1,332 467 824 1,291 416 Other income producing property 3,117 150 2,722 2,872 142 Consumer 211 — 188 188 2 Total $ 59,460 $ 10,714 $ 46,304 $ 57,018 $ 1,628 March 31, 2018 Commercial real estate: Construction and land development $ 50,399 $ 476 $ 45,722 $ 46,198 $ 767 Commercial non-owner occupied 2,916 659 522 1,181 110 Commercial owner occupied 8,972 3,273 2,305 5,578 63 Consumer real estate: Consumer owner occupied 7,245 4,332 1,161 5,493 35 Home equity loans 3,855 1,105 2,063 3,168 73 Commercial and industrial 2,679 634 1,043 1,677 489 Other income producing property 3,793 112 2,974 3,086 166 Consumer 787 — 315 315 9 Total $ 80,646 $ 10,591 $ 56,105 $ 66,696 $ 1,712
Summary of average investment in impaired loans and interest income recognized on impaired loans	Three Months Ended March 31, 2019 2018 Average Average Investment in Interest Income Investment in Interest Income (Dollars in thousands) Impaired Loans Recognized Impaired Loans Recognized Commercial real estate: Construction and land development $ 38,085 $ 481 $ 44,714 $ 513 Commercial non-owner occupied 700 2 1,278 5 Commercial owner occupied 4,181 67 5,610 75 Consumer real estate: Consumer owner occupied 6,823 49 5,563 43 Home equity loans 2,790 32 3,090 29 Commercial and industrial 1,303 20 1,417 17 Other income producing property 2,614 30 3,112 46 Consumer 149 — 277 — Total Impaired Loans $ 56,645 $ 681 $ 65,061 $ 728
Southeastern Bank Financial
Loans and Allowance for Loan Losses
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values	January 3, 2017 Loans Impaired (Dollars in thousands) at Acquisition Contractual principal and interest $ 78,963 Non-accretable difference (13,072) Cash flows expected to be collected 65,891 Accretable difference (4,910) Carrying value $ 60,981
Park Sterling Corporation
Loans and Allowance for Loan Losses
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values	November 30, 2017 Loans Impaired (Dollars in thousands) at Acquisition Contractual principal and interest $ 113,584 Non-accretable difference (27,248) Cash flows expected to be collected 86,336 Accretable difference (7,369) Carrying value $ 78,967
Non-acquired loans
Loans and Allowance for Loan Losses
Summary of loans	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Non-acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 810,551 $ 841,445 $ 871,141 Commercial non-owner occupied 1,615,416 1,415,551 1,050,924 Total commercial non-owner occupied real estate 2,425,967 2,256,996 1,922,065 Consumer real estate: Consumer owner occupied 2,005,314 1,936,265 1,612,501 Home equity loans 508,326 495,148 448,582 Total consumer real estate 2,513,640 2,431,413 2,061,083 Commercial owner occupied real estate 1,601,360 1,517,551 1,296,738 Commercial and industrial 1,072,070 1,054,952 872,363 Other income producing property 214,235 214,353 198,684 Consumer 465,117 448,664 390,784 Other loans 18,224 9,357 20,795 Total non-acquired loans 8,310,613 7,933,286 6,762,512 Less allowance for loan losses (52,008) (51,194) (45,203) Non-acquired loans, net $ 8,258,605 $ 7,882,092 $ 6,717,309
Schedule of changes in allowance for loan losses	Construction Commercial Commercial Consumer Other Income & Land Non-owner Owner Owner Home Commercial Producing Other (Dollars in thousands) Development Occupied Occupied Occupied Equity & Industrial Property Consumer Loans Total Three Months Ended March 31, 2019 Allowance for loan losses: Balance, December 31, 2018 $ 5,682 $ 8,754 $ 9,369 $ 11,913 $ 3,434 $ 7,454 $ 1,446 $ 3,101 $ 41 $ 51,194 Charge-offs — — (12) (37) (15) (19) — (1,162) — (1,245) Recoveries 299 22 25 2 36 71 45 252 — 752 Provision (benefit) (610) 964 247 180 (182) (257) (104) 1,004 65 1,307 Balance, March 31, 2019 $ 5,371 $ 9,740 $ 9,629 $ 12,058 $ 3,273 $ 7,249 $ 1,387 $ 3,195 $ 106 $ 52,008 Loans individually evaluated for impairment $ 786 $ 60 $ 21 $ 37 $ 161 $ 420 $ 111 $ 3 $ — $ 1,599 Loans collectively evaluated for impairment $ 4,585 $ 9,680 $ 9,608 $ 12,021 $ 3,112 $ 6,829 $ 1,276 $ 3,192 $ 106 $ 50,409 Loans: Loans individually evaluated for impairment $ 38,257 $ 375 $ 4,220 $ 6,885 $ 2,754 $ 1,315 $ 2,357 $ 110 $ — $ 56,273 Loans collectively evaluated for impairment 772,294 1,615,041 1,597,140 1,998,429 505,572 1,070,755 211,878 465,007 18,224 8,254,340 Total non-acquired loans $ 810,551 $ 1,615,416 $ 1,601,360 $ 2,005,314 $ 508,326 $ 1,072,070 $ 214,235 $ 465,117 $ 18,224 $ 8,310,613 Three Months Ended March 31, 2018 Allowance for loan losses: Balance, December 31, 2017 $ 5,921 $ 6,525 $ 8,128 $ 9,668 $ 3,250 $ 5,488 $ 1,375 $ 2,788 $ 305 $ 43,448 Charge-offs (35) — — (4) (66) (85) — (979) — (1,169) Recoveries 442 2 8 23 101 15 8 203 — 802 Provision (benefit) (481) 271 210 506 (48) 915 10 887 (148) 2,122 Balance, March 31, 2018 $ 5,847 $ 6,798 $ 8,346 $ 10,193 $ 3,237 $ 6,333 $ 1,393 $ 2,899 $ 157 $ 45,203 Loans individually evaluated for impairment $ 767 $ 110 $ 63 $ 35 $ 73 $ 489 $ 166 $ 9 $ — $ 1,712 Loans collectively evaluated for impairment $ 5,080 $ 6,688 $ 8,283 $ 10,158 $ 3,164 $ 5,844 $ 1,227 $ 2,890 $ 157 $ 43,491 Loans: Loans individually evaluated for impairment $ 46,198 $ 1,181 $ 5,578 $ 5,493 $ 3,168 $ 1,677 $ 3,086 $ 315 $ — $ 66,696 Loans collectively evaluated for impairment 824,943 1,049,743 1,291,160 1,607,008 445,414 870,686 195,598 390,469 20,795 6,695,816 Total non-acquired loans $ 871,141 $ 1,050,924 $ 1,296,738 $ 1,612,501 $ 448,582 $ 872,363 $ 198,684 $ 390,784 $ 20,795 $ 6,762,512
Schedule of credit risk profile by risk grade of loans	Total Non-acquired Loans March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Pass $ 8,190,887 $ 7,813,938 $ 6,645,048 Special mention 66,373 66,645 79,619 Substandard 53,353 52,703 37,845 Doubtful — — — $ 8,310,613 $ 7,933,286 $ 6,762,512
Aging analysis of past due loans (includes nonaccrual loans), segregated by class of loans	30 - 59 Days 60 - 89 Days 90+ Days Total Total (Dollars in thousands) Past Due Past Due Past Due Past Due Current Loans March 31, 2019 Commercial real estate: Construction and land development $ 563 $ 141 $ 283 $ 987 $ 809,564 $ 810,551 Commercial non-owner occupied — — 22 22 1,615,394 1,615,416 Commercial owner occupied 3,336 1,556 889 5,781 1,595,579 1,601,360 Consumer real estate: Consumer owner occupied 1,929 743 2,510 5,182 2,000,132 2,005,314 Home equity loans 333 206 1,022 1,561 506,765 508,326 Commercial and industrial 4,658 222 614 5,494 1,066,576 1,072,070 Other income producing property 658 — 372 1,030 213,205 214,235 Consumer 471 230 677 1,378 463,739 465,117 Other loans — — — — 18,224 18,224 $ 11,948 $ 3,098 $ 6,389 $ 21,435 $ 8,289,178 $ 8,310,613 December 31, 2018 Commercial real estate: Construction and land development $ 693 $ 305 $ 452 $ 1,450 $ 839,995 $ 841,445 Commercial non-owner occupied 68 18 396 482 1,415,069 1,415,551 Commercial owner occupied 1,639 1,495 904 4,038 1,513,513 1,517,551 Consumer real estate: Consumer owner occupied 1,460 789 943 3,192 1,933,073 1,936,265 Home equity loans 744 532 713 1,989 493,159 495,148 Commercial and industrial 898 120 573 1,591 1,053,361 1,054,952 Other income producing property 169 26 289 484 213,869 214,353 Consumer 437 174 718 1,329 447,335 448,664 Other loans — — — — 9,357 9,357 $ 6,108 $ 3,459 $ 4,988 $ 14,555 $ 7,918,731 $ 7,933,286 March 31, 2018 Commercial real estate: Construction and land development $ 673 $ 4 $ 133 $ 810 $ 870,331 $ 871,141 Commercial non-owner occupied 89 20 707 816 1,050,108 1,050,924 Commercial owner occupied 573 1,218 1,702 3,493 1,293,245 1,296,738 Consumer real estate: Consumer owner occupied 1,274 601 1,598 3,473 1,609,028 1,612,501 Home equity loans 1,452 65 1,423 2,940 445,642 448,582 Commercial and industrial 983 476 899 2,358 870,005 872,363 Other income producing property 360 108 125 593 198,091 198,684 Consumer 134 160 496 790 389,994 390,784 Other loans — — — — 20,795 20,795 $ 5,538 $ 2,652 $ 7,083 $ 15,273 $ 6,747,239 $ 6,762,512
Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	Consumer Owner Occupied Home Equity Consumer March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 1,978,122 $ 1,909,427 $ 1,584,427 $ 495,127 $ 481,607 $ 435,282 $ 463,271 $ 446,823 $ 389,386 Special mention 10,769 11,304 13,329 6,915 7,293 6,767 467 437 301 Substandard 16,423 15,534 14,745 6,284 6,248 6,533 1,379 1,404 1,097 Doubtful — — — — — — — — — $ 2,005,314 $ 1,936,265 $ 1,612,501 $ 508,326 $ 495,148 $ 448,582 $ 465,117 $ 448,664 $ 390,784 Other Consumer Total March 31, 2019 December 31, 2018 March 31, 2018 March 31, 2019 December 31, 2018 March 31, 2018 Pass $ 18,224 $ 9,357 $ 20,795 $ 2,954,744 $ 2,847,214 $ 2,429,890 Special mention — — — 18,151 19,034 20,397 Substandard — — — 24,086 23,186 22,375 Doubtful — — — — — — $ 18,224 $ 9,357 $ 20,795 $ 2,996,981 $ 2,889,434 $ 2,472,662
Non-acquired loans | Commercial loans
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	Construction & Development Commercial Non-owner Occupied Commercial Owner Occupied March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 801,949 $ 832,612 $ 857,307 $ 1,607,034 $ 1,407,744 $ 1,040,669 $ 1,564,083 $ 1,480,267 $ 1,267,759 Special mention 5,303 6,015 10,499 7,372 6,427 8,497 24,241 24,576 22,619 Substandard 3,299 2,818 3,335 1,010 1,380 1,758 13,036 12,708 6,360 Doubtful — — — — — — — — — $ 810,551 $ 841,445 $ 871,141 $ 1,615,416 $ 1,415,551 $ 1,050,924 $ 1,601,360 $ 1,517,551 $ 1,296,738 Commercial & Industrial Other Income Producing Property Commercial Total March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 1,054,732 $ 1,037,915 $ 857,567 $ 208,345 $ 208,186 $ 191,856 $ 5,236,143 $ 4,966,724 $ 4,215,158 Special mention 7,056 5,887 12,286 4,250 4,706 5,321 48,222 47,611 59,222 Substandard 10,282 11,150 2,510 1,640 1,461 1,507 29,267 29,517 15,470 Doubtful — — — — — — — — — $ 1,072,070 $ 1,054,952 $ 872,363 $ 214,235 $ 214,353 $ 198,684 $ 5,313,632 $ 5,043,852 $ 4,289,850
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Summary of loans	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 FASB ASC Topic 310-30 acquired loans: Commercial real estate $ 173,707 $ 196,764 $ 233,277 Commercial real estate—construction and development 32,257 32,942 46,219 Residential real estate 199,701 207,482 248,766 Consumer 40,182 42,492 48,801 Commercial and industrial 10,925 10,043 24,295 Total FASB ASC Topic 310-30 acquired loans 456,772 489,723 601,358 Less allowance for loan losses (4,514) (4,604) (4,084) FASB ASC Topic 310-30 acquired loans, net $ 452,258 $ 485,119 $ 597,274
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Contractual principal and interest $ 583,518 $ 626,691 $ 760,973 Non-accretable difference (24,282) (24,818) (33,841) Cash flows expected to be collected 559,236 601,873 727,132 Accretable yield (106,978) (116,754) (129,858) Carrying value $ 452,258 $ 485,119 $ 597,274
Schedule of refined accretable yield balance	Three Months Ended March 31, (Dollars in thousands) 2019 2018 Balance at beginning of period $ 116,754 $ 133,096 Contractual interest income (7,078) (8,696) Accretion on acquired loans (5,120) (3,801) Reclass of nonaccretable difference due to improvement in expected cash flows 2,474 9,335 Other changes, net (52) (76) Balance at end of period $ 106,978 $ 129,858
Schedule of changes in allowance for loan losses	Commercial Real Estate- Commercial Construction and Residential Commercial (Dollars in thousands) Real Estate Development Real Estate Consumer and Industrial Total Three Months Ended March 31, 2019 Allowance for loan losses: Balance, December 31, 2018 $ 801 $ 717 $ 2,246 $ 761 $ 79 $ 4,604 Provision (benefit) for loan losses 51 — 16 — 13 Reduction due to loan removals (5) — — — Balance, March 31, 2019 $ 847 $ 717 $ 2,164 $ 707 $ 79 $ 4,514 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ 847 $ 717 $ 2,164 $ 707 $ 79 $ 4,514 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 173,707 32,257 199,701 40,182 10,925 456,772 Total acquired credit impaired loans $ 173,707 $ 32,257 $ 199,701 $ 40,182 $ 10,925 $ 456,772 Three Months Ended March 31, 2018 Allowance for loan losses: Balance , December 31, 2017 $ 288 $ 180 $ 3,553 $ 461 $ 145 $ 4,627 Provision (benefit) for loan losses (14) 88 (944) 133 900 163 Reduction due to loan removals (13) (53) (100) — (540) (706) Balance, March 31, 2018 $ 261 $ 215 $ 2,509 $ 594 $ 505 $ 4,084 Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ 261 $ 215 $ 2,509 $ 594 $ 505 $ 4,084 Loans:* Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 233,277 46,219 248,766 48,801 24,295 601,358 Total acquired credit impaired loans $ 233,277 $ 46,219 $ 248,766 $ 48,801 $ 24,295 $ 601,358 *— The carrying value of acquired credit impaired loans includes a non-accretable difference which is primarily associated with the assessment of credit quality of acquired loans.
Schedule of credit risk profile by risk grade of loans	Commercial Real Estate— Construction and Commercial Real Estate Development March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 Pass $ 140,785 $ 160,788 $ 171,585 $ 20,950 $ 20,293 $ 28,501 Special mention 13,025 14,393 24,550 3,500 3,001 4,654 Substandard 19,897 21,583 37,142 7,807 9,648 13,064 Doubtful — — — — — — $ 173,707 $ 196,764 $ 233,277 $ 32,257 $ 32,942 $ 46,219 Residential Real Estate Consumer Commercial & Industrial March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 100,803 $ 104,181 $ 129,952 $ 5,134 $ 5,751 $ 7,247 $ 6,802 $ 5,093 $ 17,163 Special mention 40,036 41,964 50,845 13,935 14,484 16,329 530 546 1,132 Substandard 58,862 61,337 67,969 21,113 22,257 25,225 3,593 4,404 6,000 Doubtful — — — — — — — — — $ 199,701 $ 207,482 $ 248,766 $ 40,182 $ 42,492 $ 48,801 $ 10,925 $ 10,043 $ 24,295 Total Acquired Credit Impaired Loans March 31, December 31, March 31, 2019 2018 2018 Pass $ 274,474 $ 296,106 $ 354,448 Special mention 71,026 74,388 97,510 Substandard 111,272 119,229 149,400 Doubtful — — — $ 456,772 $ 489,723 $ 601,358
Aging analysis of past due loans (includes nonaccrual loans), segregated by class of loans	30 - 59 Days 60 - 89 Days 90+ Days Total Total (Dollars in thousands) Past Due Past Due Past Due Past Due Current Loans March 31, 2019 Commercial real estate $ 788 $ 238 $ 3,959 $ 4,985 $ 168,722 $ 173,707 Commercial real estate—construction and development — — 2,481 2,481 29,776 32,257 Residential real estate 2,529 1,034 6,385 9,948 189,753 199,701 Consumer 373 190 591 1,154 39,028 40,182 Commercial and industrial — — 2,514 2,514 8,411 10,925 $ 3,690 $ 1,462 $ 15,930 $ 21,082 $ 435,690 $ 456,772 December 31, 2018 Commercial real estate $ 876 $ 112 $ 4,533 $ 5,521 $ 191,243 $ 196,764 Commercial real estate—construction and development 115 12 2,816 2,943 29,999 32,942 Residential real estate 4,620 1,251 8,487 14,358 193,124 207,482 Consumer 722 90 839 1,651 40,841 42,492 Commercial and industrial 2,437 — 88 2,525 7,518 10,043 $ 8,770 $ 1,465 $ 16,763 $ 26,998 $ 462,725 $ 489,723 March 31, 2018 Commercial real estate $ 6,043 $ 5,293 $ 6,239 $ 17,575 $ 215,702 $ 233,277 Commercial real estate—construction and development 53 321 3,438 3,812 42,407 46,219 Residential real estate 4,497 3,063 8,598 16,158 232,608 248,766 Consumer 800 275 1,028 2,103 46,698 48,801 Commercial and industrial 55 — 820 875 23,420 24,295 $ 11,448 $ 8,952 $ 20,123 $ 40,523 $ 560,835 $ 601,358
Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Summary of information pertaining to nonaccrual loans by class	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Commercial non-owner occupied real estate: Construction and land development $ 414 $ 424 $ 500 Commercial non-owner occupied 505 831 1,174 Total commercial non-owner occupied real estate 919 1,255 1,674 Consumer real estate: Consumer owner occupied 7,658 7,109 5,541 Home equity loans 2,666 2,333 2,593 Total consumer real estate 10,324 9,442 8,134 Commercial owner occupied real estate 1,215 1,068 1,647 Commercial and industrial 286 647 799 Other income producing property 596 500 170 Consumer 1,244 1,267 903 Restructured loans 830 648 782 Total loans on nonaccrual status $ 15,414 $ 14,827 $ 14,109
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Summary of loans	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 FASB ASC Topic 310-20 acquired loans: Commercial non-owner occupied real estate: Construction and land development $ 113,572 $ 165,070 $ 349,532 Commercial non-owner occupied 629,394 679,253 783,466 Total commercial non-owner occupied real estate 742,966 844,323 1,132,998 Consumer real estate: Consumer owner occupied 610,376 628,813 683,614 Home equity loans 225,278 242,425 295,721 Total consumer real estate 835,654 871,238 979,335 Commercial owner occupied real estate 400,658 421,841 498,541 Commercial and industrial 173,840 212,537 344,171 Other income producing property 120,696 133,110 186,091 Consumer 104,923 111,777 133,802 Total FASB ASC Topic 310-20 acquired loans $ 2,378,737 $ 2,594,826 $ 3,274,938
Schedule of changes in allowance for loan losses	Construction Commercial Commercial Consumer Other Income & Land Non-owner Owner Owner Home Commercial Producing (Dollars in thousands) Development Occupied Occupied Occupied Equity & Industrial Property Consumer Other Total Three Months Ended March 31, 2019 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs (6) — — — (72) (134) (26) (136) — (374) Recoveries 1 — — 2 22 165 — 16 — 206 Provision (benefit) 5 — — (2) 50 (31) 26 120 — 168 Balance, March 31, 2019 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 113,572 629,394 400,658 610,376 225,278 173,840 120,696 104,923 — 2,378,737 Total acquired non-credit impaired loans $ 113,572 $ 629,394 $ 400,658 $ 610,376 $ 225,278 $ 173,840 $ 120,696 $ 104,923 $ — $ 2,378,737 Three Months Ended March 31, 2018 Allowance for loan losses: Balance at beginning of period $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Charge-offs (1) — — (70) (82) (43) — (138) — (334) Recoveries 1 — — 57 51 53 — 3 — 165 Provision (benefit) — — — 13 31 (10) — 135 — 169 Balance, March 31, 2018 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 349,532 783,466 498,541 683,614 295,721 344,171 186,091 133,802 — 3,274,938 Total acquired non-credit impaired loans $ 349,532 $ 783,466 $ 498,541 $ 683,614 $ 295,721 $ 344,171 $ 186,091 $ 133,802 $ — $ 3,274,938
Schedule of credit risk profile by risk grade of loans	Total Acquired Non-credit Impaired Loans March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Pass $ 2,292,765 $ 2,523,010 $ 3,207,265 Special mention 59,811 48,716 45,043 Substandard 26,161 23,100 22,630 Doubtful — — — $ 2,378,737 $ 2,594,826 $ 3,274,938
Aging analysis of past due loans (includes nonaccrual loans), segregated by class of loans	30 - 59 Days 60 - 89 Days 90+ Days Total Total (Dollars in thousands) Past Due Past Due Past Due Past Due Current Loans March 31, 2019 Commercial real estate: Construction and land development $ 521 $ 116 $ 226 $ 863 $ 112,709 $ 113,572 Commercial non-owner occupied 96 — 289 385 629,009 629,394 Commercial owner occupied 659 237 1,209 2,105 398,553 400,658 Consumer real estate: Consumer owner occupied 349 72 1,968 2,389 607,987 610,376 Home equity loans 1,483 298 2,237 4,018 221,260 225,278 Commercial and industrial 1,185 1,479 18 2,682 171,158 173,840 Other income producing property 210 81 37 328 120,368 120,696 Consumer 337 107 396 840 104,083 104,923 $ $ $ $ $ $ December 31, 2018 Commercial real estate: Construction and land development $ 647 $ 45 $ 365 $ 1,057 $ 164,013 $ 165,070 Commercial non-owner occupied 607 21 283 911 678,342 679,253 Commercial owner occupied 964 1,006 — 1,970 419,871 421,841 Consumer real estate: Consumer owner occupied 1,127 621 789 2,537 626,276 628,813 Home equity loans 1,286 442 2,209 3,937 238,488 242,425 Commercial and industrial 2,648 130 19 2,797 209,740 212,537 Other income producing property 603 276 129 1,008 132,102 133,110 Consumer 574 209 532 1,315 110,462 111,777 $ 8,456 $ 2,750 $ 4,326 $ 15,532 $ 2,579,294 $ 2,594,826 March 31, 2018 Commercial real estate: Construction and land development $ 1,788 $ 115 $ 288 $ 2,191 $ 347,341 $ 349,532 Commercial non-owner occupied 242 — 134 376 783,090 783,466 Commercial owner occupied 1,142 — — 1,142 497,399 498,541 Consumer real estate: Consumer owner occupied 1,304 76 786 2,166 681,448 683,614 Home equity loans 1,881 833 2,125 4,839 290,882 295,721 Commercial and industrial 1,998 27 87 2,112 342,059 344,171 Other income producing property 101 69 195 365 185,726 186,091 Consumer 287 138 1,118 1,543 132,259 133,802 $ 8,743 $ 1,258 $ 4,733 $ 14,734 $ 3,260,204 $ 3,274,938
Summary of information pertaining to nonaccrual loans by class	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Commercial non-owner occupied real estate: Construction and land development $ $ $ 426 Commercial non-owner occupied 289 283 — Total commercial non-owner occupied real estate 426 Consumer real estate: Consumer owner occupied 1,427 Home equity loans 3,931 Total consumer real estate 5,358 Commercial owner occupied real estate 1,664 178 Commercial and industrial 138 Other income producing property 325 Consumer 1,651 Total loans on nonaccrual status $ 14,294 $ $ 8,076
Acquired non-credit impaired loans | Commercial loans
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	Commercial Non-owner Construction & Development Occupied Commercial Owner Occupied March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 111,414 $ 163,777 $ 345,635 $ 615,277 $ 665,913 $ 775,924 $ 380,536 $ 411,783 $ 490,089 Special mention 845 838 2,892 13,682 13,018 7,533 15,440 5,664 8,254 Substandard 1,313 455 1,005 435 322 9 4,682 4,394 198 Doubtful — — — — — — — — — $ 113,572 $ 165,070 $ 349,532 $ 629,394 $ 679,253 $ 783,466 $ 400,658 $ 421,841 $ 498,541 Other Income Producing Commercial & Industrial Property Commercial Total March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 163,298 $ 202,399 $ 327,409 $ 113,047 $ 125,399 $ 180,825 $ 1,383,572 $ 1,569,271 $ 2,119,882 Special mention 7,897 6,523 8,049 6,333 6,419 4,369 44,197 32,462 31,097 Substandard 2,645 3,615 8,713 1,316 1,292 897 10,391 10,078 10,822 Doubtful — — — — — — — — — $ 173,840 $ 212,537 $ 344,171 $ 120,696 $ 133,110 $ 186,091 $ 1,438,160 $ 1,611,811 $ 2,161,801
Acquired non-credit impaired loans | Consumer
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans	Consumer Owner Occupied Home Equity Consumer March 31, December 31, March 31, March 31, December 31, March 31, March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 2019 2018 2018 2019 2018 2018 Pass $ 597,220 $ 617,391 $ 676,981 $ 210,066 $ 227,515 $ 279,487 $ 101,907 $ 108,833 $ 130,915 Special mention 7,325 7,868 4,484 7,623 7,688 8,942 666 698 520 Substandard 5,831 3,554 2,149 7,589 7,222 7,292 2,350 2,246 2,367 Doubtful — — — — — — — — — $ 610,376 $ 628,813 $ 683,614 $ 225,278 $ 242,425 $ 295,721 $ 104,923 $ 111,777 $ 133,802 Consumer Total March 31, December 31, March 31, 2019 2018 2018 Pass $ 909,193 $ 953,739 $ 1,087,383 Special mention 15,614 16,254 13,946 Substandard 15,770 13,022 11,808 Doubtful — — — $ 940,577 $ 983,015 $ 1,113,137

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	3 Months Ended
	Mar. 31, 2019
Other Real Estate Owned
Schedule of information pertaining to OREO	Three Months Ended March 31, (Dollars in thousands) 2019 2018 Beginning balance $ 11,410 $ 11,203 Acquired in PSC acquisition — 210 Additions 1,004 2,895 Writedowns (98) (777) Sold (1,019) (2,458) Ending Balance $ 11,297 $ 11,073

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases
Schedule of maturity analysis of lease liabilities	Three Months Ended (Dollars in thousands) March 31, 2019 Lease Expense Components: Operating lease expense $ 2,146 Short-term lease expense Variable lease expense 69 Total lease expense $ 2,359 Supplemental Cash Flow Information Related to Leases: Cash paid for amounts included in the measurement of lease liabilities - operating leases $ 1,890 Initial ROU assets recorded in exchange for new lease liabilities at January 1, 2019 - operating leases $ 82,160 ROU assets obtained in exchange for new lease liabilities during first quarter 2019- operating leases $ 1,956 Weighted - average remaining lease term (years) - operating leases 14.33 Weighted - average discount rate - operating leases Supplemental Balance Sheet Information Related to Leases Operating lease ROU assets (premises and equipment) $ 82,787 Operating lease liabilities (other liabilities) $ 83,043 Maturity Analysis of Lease Liabilities: Year Ending December 31, 2019 (excluding the three months ended March 31, 2019) $ 5,820 2020 7,866 2021 7,939 2022 7,937 2023 7,890 Thereafter 73,186 Total $ 110,638 Less: Imputed Interest (27,595) Lease Liability $ 83,043

Deposits (Tables)

Deposits (Tables)	3 Months Ended
	Mar. 31, 2019
Deposits
Schedule of total deposits	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Certificates of deposit $ 1,756,637 $ 1,775,095 $ 1,765,576 Interest-bearing demand deposits 5,562,111 5,407,175 5,308,154 Non-interest bearing demand deposits 3,219,864 3,061,769 3,120,818 Savings deposits 1,374,557 1,399,815 1,464,074 Other time deposits 5,802 3,079 4,476 Total deposits $ 11,918,971 $ 11,646,933 $ 11,663,098

Retirement Plans (Tables)

Retirement Plans (Tables)	3 Months Ended
	Mar. 31, 2019
Retirement Plans
Schedule of components of net periodic pension expense	Three Months Ended March 31, (Dollars in thousands) 2019 2018 Interest cost $ $ Service cost Expected return on plan assets Recognized net actuarial loss Net periodic pension benefit $ $

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share
Schedule of computation of basic and diluted earnings per share	Three Months Ended March 31, (Dollars and shares in thousands, except for per share amounts) 2019 2018 Basic earnings per common share: Net income $ 44,367 $ 42,326 Weighted-average basic common shares 35,445 36,646 Basic earnings per common share $ $ Diluted earnings per share: Net income $ 44,367 $ 42,326 Weighted-average basic common shares 35,445 36,646 Effect of dilutive securities 174 253 Weighted-average dilutive shares 35,619 36,899 Diluted earnings per common share $ 1.25 $ 1.15
Schedule of anti-dilutive securities excluded from computation of diluted earnings per common share	Three Months Ended March 31, (Dollars in thousands) 2019 2018 Number of shares Range of exercise prices $ to $ $ to $

Share-Based Compensation (Table

Share-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2019
Share-Based Compensation
Schedule of stock option activity	Weighted Weighted Average Aggregate Average Remaining Intrinsic Shares Price (Yrs.) (000's) Outstanding at January 1, 2019 213,866 $ 61.28 Granted — — Exercised (12,722) 31.62 Outstanding at March 31, 2019 201,144 63.16 5.64 $ 2,461 Exercisable at March 31, 2019 155,472 56.07 4.88 $ 2,432 Weighted-average fair value of options granted during the year $
Schedule of weighted-average assumptions used in valuing options	Year ended March 31, 2019 2018 Dividend yield — % % Expected life — years years Expected volatility — % % Risk-free interest rate — % %
Summary of nonvested restricted stock	Nonvested restricted stock for the three months ended March 31, 2019 is summarized in the following table. All information has been retroactively adjusted for stock dividends and stock splits. Weighted- Average Grant-Date Restricted Stock Shares Fair Value Nonvested at January 1, 2019 104,419 $ 62.45 Granted 1,148 59.95 Vested (7,040) 86.82 Forfeited (1,118) 77.88 Nonvested at March 31, 2019 97,409 60.48
Summary of nonvested RSUs	Nonvested RSUs for the three months ended March 31, 2019 is summarized in the following table. Weighted- Average Grant-Date Restricted Stock Units Shares Fair Value Nonvested at January 1, 2019 200,540 $ 85.15 Granted 128,386 66.80 Forfeited (227) 89.43 Nonvested at March 31, 2019 328,699 77.98

Fair Value (Tables)

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value
Schedule of recorded amount of assets and liabilities measured at fair value on a recurring basis	Quoted Prices In Active Significant Markets Other Significant for Identical Observable Unobservable Assets Inputs Inputs (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) March 31, 2019: Assets Derivative financial instruments $ 8,727 $ — $ 8,727 $ — Loans held for sale 33,297 — 33,297 — Securities available for sale: Government-sponsored entities debt 65,704 — 65,704 — State and municipal obligations 193,418 — 193,418 — Mortgage-backed securities 1,207,127 — 1,207,127 — Total securities available for sale 1,466,249 — 1,466,249 — Mortgage servicing rights 32,415 — — 32,415 $ 1,540,688 $ — $ 1,508,273 $ 32,415 Liabilities Derivative financial instruments $ 10,330 $ — $ 10,330 $ — December 31, 2018: Assets Derivative financial instruments $ 5,090 $ — $ 5,090 $ — Loans held for sale 22,925 — 22,925 — Securities available for sale: Government-sponsored entities debt 48,251 — 48,251 — State and municipal obligations 200,768 — 200,768 — Mortgage-backed securities 1,268,048 — 1,268,048 — Total securities available for sale 1,517,067 — 1,517,067 — Mortgage servicing rights 34,727 — — 34,727 $ 1,579,809 $ — $ 1,545,082 $ 34,727 Liabilities Derivative financial instruments $ 4,421 $ — $ 4,421 $ — March 31, 2018: Assets Derivative financial instruments $ 7,420 $ — $ 7,420 $ — Loans held for sale 42,690 — 42,690 — Securities available for sale: Government-sponsored entities debt 89,746 — 89,746 — State and municipal obligations 225,686 — 225,686 — Mortgage-backed securities 1,325,405 — 1,325,405 — Total securities available for sale 1,640,837 — 1,640,837 — Mortgage servicing rights 34,196 — — 34,196 $ 1,725,143 $ — $ 1,690,947 $ 34,196 Liabilities Derivative financial instruments $ 6,094 $ — $ 6,094 $ —
Schedule of reconciliation of the beginning and ending balances of Level 3 assets and liabilities recorded at fair value on a recurring basis	(Dollars in thousands) Assets Liabilities Fair value, January 1, 2019 $ 34,727 $ — Servicing assets that resulted from transfers of financial assets 931 — Changes in fair value due to valuation inputs or assumptions (2,357) — Changes in fair value due to decay (886) — Fair value , March 31, 2019 $ 32,415 $ — Fair value, January 1, 2018 $ 31,119 $ — Servicing assets that resulted from transfers of financial assets 1,490 — Changes in fair value due to valuation inputs or assumptions 2,516 — Changes in fair value due to decay (929) — Fair value, March 31, 2018 $ 34,196 $ —
Schedule of amounts of assets and liabilities measured at fair value on a nonrecurring basis	Quoted Prices In Active Significant Markets Other Significant for Identical Observable Unobservable Assets Inputs Inputs (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) March 31, 2019: OREO $ 11,297 $ — $ — $ 11,297 Non-acquired impaired loans 1,839 — — 1,839 December 31, 2018: OREO $ 11,410 $ — $ — $ 11,410 Non-acquired impaired loans 13,164 — — 13,164 March 31, 2018: OREO $ 11,073 $ — $ — $ 11,073 Non-acquired impaired loans 2,118 — — 2,118
Quantitative Information about Level 3 Fair Value Measurements	Weighted Average March 31, December 31, March 31, Valuation Technique Unobservable Input 2019 2018 2018 Nonrecurring measurements: Non-acquired impaired loans Discounted appraisals Collateral discounts 3 % 3 % 3 % OREO Discounted appraisals Collateral discounts and estimated costs to sell 24 % 23 % 28 %
Schedule of estimated fair value, and related carrying amount, of the Company's financial instruments	Carrying Fair (Dollars in thousands) Amount Value Level 1 Level 2 Level 3 March 31, 2019 Financial assets: Cash and cash equivalents $ 949,591 $ 949,591 $ 949,591 $ — $ — Investment securities 1,506,873 1,506,873 40,624 1,466,249 — Loans held for sale 22,925 22,925 — 22,925 — Loans, net of allowance for loan losses 11,089,600 11,005,731 — — 11,005,731 Accrued interest receivable 36,965 36,965 524 5,891 30,550 Mortgage servicing rights 32,415 32,415 — — 32,415 Interest rate swap - non-designated hedge 6,672 6,672 — 6,672 — Interest rate swap - cash flow hedge 217 217 — 217 — Other derivative financial instruments (mortgage banking related) 1,838 1,838 — 1,838 — Financial liabilities: Deposits 11,918,971 10,956,761 — 10,956,761 — Federal funds purchased and securities sold under agreements to repurchase 276,891 276,891 — 276,891 — Other borrowings 616,250 619,140 — 619,140 — Accrued interest payable 5,688 5,688 — 5,688 — Interest rate swap - non-designated hedge 7,403 7,403 — 7,403 — Interest rate swap - cash flow hedge 2,927 2,927 — 2,927 — Off balance sheet financial instruments: Commitments to extend credit — (21,189) — (21,189) — December 31, 2018 Financial assets: Cash and cash equivalents $ 408,983 $ 408,983 $ 408,983 $ — $ — Investment securities 1,542,671 1,542,671 25,604 1,517,067 — Loans held for sale 22,925 22,925 — 22,925 — Loans, net of allowance for loan losses 10,962,037 10,613,571 — — 10,613,571 Accrued interest receivable 35,997 35,997 — 6,908 29,089 Mortgage servicing rights 34,727 34,727 — — 34,727 Interest rate swap - non-designated hedge 3,824 3,824 — 3,824 — Other derivative financial instruments (mortgage banking related) 1,267 1,267 — 1,267 — Financial liabilities: Deposits 11,646,933 10,561,394 — 10,561,394 — Federal funds purchased and securities sold under agreements to repurchase 270,649 270,649 — 270,649 — Other borrowings 266,084 269,134 — 269,134 — Accrued interest payable 4,719 4,719 — 4,719 — Interest rate swap - non-designated hedge 4,373 4,373 — 4,373 — Interest rate swap - cash flow hedge — — Off balance sheet financial instruments: Commitments to extend credit — (88,424) — (88,424) — March 31, 2018 Financial assets: Cash and cash equivalents $ 644,504 $ 644,504 $ 644,504 $ — $ — Investment securities 1,665,590 1,665,600 23,479 1,642,121 — Loans held for sale 42,690 42,690 — 42,690 — Loans, net of allowance for loan losses 10,589,521 10,419,134 — — 10,419,134 Accrued interest receivable 31,175 31,175 — 6,661 24,514 Mortgage servicing rights 34,196 34,196 — — 34,196 Interest rate swap - non-designated hedge — — Other derivative financial instruments (mortgage banking related) 1,665 1,665 — 1,665 — Financial liabilities: Deposits 11,663,098 10,780,965 — 10,780,965 — Federal funds purchased and securities sold under agreements to repurchase 357,574 357,574 — 357,574 — Other borrowings 215,589 219,037 — 219,037 — Accrued interest payable 3,563 3,563 — 3,563 — Interest rate swap - cash flow hedge — — Interest rate swap - non-designated hedge 5,932 5,932 — 5,932 — Off balance sheet financial instruments: Commitments to extend credit — (48,841) — (48,841) —

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss)
Schedule of components of accumulated other comprehensive income (loss)	Unrealized Gains and Losses Gains and on Securities Losses on Benefit Available Cash Flow (Dollars in thousands) Plans for Sale Hedges Total Three Months Ended March 31, 2019 Balance at December 31, 2018 $ (6,450) $ (18,394) $ (37) $ (24,881) Other comprehensive gain (loss) before reclassifications — 13,066 (2,068) 10,998 Amounts reclassified from accumulated other comprehensive income (loss) 95 422 (8) 509 Net comprehensive income (loss) 95 13,488 (2,076) 11,507 Balance at March 31, 2019 $ (6,355) $ (4,906) $ (2,113) $ (13,374) Three Months Ended March 31, 2018 Balance at December 31, 2017 $ (5,998) $ (4,278) $ (151) $ (10,427) Other comprehensive income (loss) before reclassifications — (17,192) 28 (17,164) Amounts reclassified from accumulated other comprehensive income 151 — 37 188 Net comprehensive income (loss) 151 (17,192) 65 (16,976) AOCI reclassification to retained earnings from the adoption of ASU 2018-02 (1,760) (1,147) (40) (2,947) Balance at March 31, 2018 $ (7,607) $ (22,617) $ (126) $ (30,350)
Schedule of reclassifications out of accumulated other comprehensive income (loss), net of tax	Amount Reclassified from Accumulated Other Comprehensive Income (Loss) (Dollars in thousands) For the Three Months Ended March 31, Accumulated Other Comprehensive Income (Loss) Component 2019 2018 Income Statement Losses on cash flow hedges: Interest rate contracts $ (10) $ 47 Interest expense 2 (10) Provision for income taxes (8) 37 Net income Gains on sales of available for sale securities: $ 541 $ — Securities gains, net (119) — Provision for income taxes 422 — Net income Amortization of defined benefit pension: Actuarial losses $ 121 $ 194 Salaries and employee benefits (26) (43) Provision for income taxes 95 151 Net income Total reclassifications for the period $ 509 $ 188

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
Derivative Financial Instruments
Derivative financial instruments summary	March 31, 2019 March 31, 2018 Balance Sheet Notional Estimated Fair Value Notional Estimated Fair Value (Dollars in thousands) Location Amount Gain Loss Amount Gain Loss Cash flow hedges of interest rate risk on Junior Subordinated Debt: Pay fixed rate swap with counterparty Other Liabilities $ 8,000 $ — $ 25 $ 8,000 $ — $ 162 Cash flow hedges of interest rate risk on FHLB Advances: Pay fixed rate swap with counterparty Other Assets and Other Liabilities $ 500,000 $ 217 $ 2,902 $ — $ — $ — Fair value hedge of interest rate risk: Pay fixed rate swap with counterparty Other Assets $ 2,799 $ — $ 108 $ 2,824 $ — $ 21 Not designated hedges of interest rate risk: Customer related interest rate contracts: Matched interest rate swaps with borrowers Other Assets and Other Liabilities $ 355,045 $ 6,112 $ 2,137 $ 282,047 $ 146 $ 5,908 Matched interest rate swaps with counterparty Other Assets and Other Liabilities $ 355,045 $ 560 $ 5,158 $ 282,047 $ 5,609 $ 3 Not designated hedges of interest rate risk - mortgage banking activities: Contracts used to hedge mortgage servicing rights Other Assets $ 129,000 $ 1,100 $ — $ 69,000 $ 390 $ — Forward sales commitments used to hedge mortgage pipeline Other Assets $ 80,059 $ 738 $ — $ 98,860 1,275 $ — Total derivatives $ 1,429,948 $ 8,727 $ 10,330 $ 742,778 $ 7,420 $ 6,094
Schedule of notional value of forward sale commitments and the fair value of those obligations along with the fair value of the mortgage pipeline	(Dollars in thousands) March 31, 2019 December 31, 2018 March 31, 2018 Mortgage loan pipeline $ 95,731 $ 50,442 $ 92,647 Expected closures 71,798 37,832 69,485 Fair value of mortgage loan pipeline commitments 1,364 705 1,190 Forward sales commitments 80,059 54,533 98,860 Fair value of forward commitments 85

Capital Ratios (Tables)

Capital Ratios (Tables)	3 Months Ended
	Mar. 31, 2019
Capital Ratios
Schedule of actual and required capital ratios	Minimum Capital Minimum Capital Required to be Required - Basel III Required - Basel III Considered Well Actual Phase-In Schedule Fully Phased In Capitalized (Dollars in thousands) Amount Ratio Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio March 31, 2019 Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,338,085 11.86 % $ 789,903 7.00 % $ 789,903 7.00 % $ 733,481 6.50 % South State Bank (the Bank) 1,429,219 12.67 % 789,867 7.00 % 789,867 7.00 % 733,448 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,449,854 12.85 % 959,168 8.50 % 959,168 8.50 % 902,746 8.00 % South State Bank (the Bank) 1,429,219 12.67 % 959,125 8.50 % 959,125 8.50 % 902,706 8.00 % Total capital to risk-weighted assets: Consolidated 1,506,710 13.35 % 1,184,855 10.50 % 1,184,855 10.50 % 1,128,433 10.00 % South State Bank (the Bank) 1,486,075 13.17 % 1,184,801 10.50 % 1,184,801 10.50 % 1,128,382 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,449,854 10.52 % 551,366 4.00 % 551,366 4.00 % 689,207 5.00 % South State Bank (the Bank) 1,429,219 10.37 % 551,218 4.00 % 551,218 4.00 % 689,022 5.00 % December 31, 2018: Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,335,826 12.05 % $ 706,981 6.38 % $ 776,293 7.00 % $ 720,844 6.50 % South State Bank (the Bank) 1,427,764 12.87 % 707,039 6.38 % 776,356 7.00 % 720,902 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,447,428 13.05 % 873,330 7.88 % 942,642 8.50 % 887,192 8.00 % South State Bank (the Bank) 1,427,764 12.87 % 873,401 7.88 % 942,718 8.50 % 887,264 8.00 % Total capital to risk-weighted assets: Consolidated 1,503,561 13.56 % 1,095,128 9.88 % 1,164,440 10.50 % 1,108,990 10.00 % South State Bank (the Bank) 1,483,897 13.38 % 1,095,217 9.88 % 1,164,534 10.50 % 1,109,080 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,447,428 10.65 % 543,506 4.00 % 543,506 4.00 % 679,383 5.00 % South State Bank (the Bank) 1,427,764 10.51 % 543,387 4.00 % 543,387 4.00 % 679,234 5.00 % March 31, 2018: Common equity Tier 1 to risk-weighted assets: Consolidated $ 1,295,729 11.85 % $ 697,237 6.38 % $ 765,594 7.00 % $ 710,909 6.50 % South State Bank (the Bank) 1,385,289 12.67 % 697,253 6.38 % 765,612 7.00 % 710,925 6.50 % Tier 1 capital to risk-weighted assets: Consolidated 1,406,832 12.86 % 861,293 7.88 % 929,650 8.50 % 874,964 8.00 % South State Bank (the Bank) 1,385,289 12.67 % 861,313 7.88 % 929,671 8.50 % 874,985 8.00 % Total capital to risk-weighted assets: Consolidated 1,456,453 13.32 % 1,080,034 9.88 % 1,148,391 10.50 % 1,093,706 10.00 % South State Bank (the Bank) 1,434,911 13.12 % 1,080,059 9.88 % 1,148,417 10.50 % 1,093,731 10.00 % Tier 1 capital to average assets (leverage ratio): Consolidated 1,406,832 10.50 % 535,724 4.00 % 535,724 4.00 % 669,654 5.00 % South State Bank (the Bank) 1,385,289 10.35 % 535,522 4.00 % 535,522 4.00 % 669,402 5.00 %

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill and Other Intangible Assets
Summary of gross carrying amounts and accumulated amortization of other intangible assets	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Gross carrying amount $ 119,501 $ 121,736 $ 118,415 Accumulated amortization (59,882) (58,836) (48,039) $ 59,619 $ 62,900 $ 70,376
Schedule of estimated amortization expense for other intangibles for each of the next five quarters	(Dollars in thousands) Quarter ending: June 30, 2019 $ 3,268 September 30, 2019 3,268 December 31, 2019 3,267 March 31, 2020 3,007 June 30, 2020 2,995 Thereafter 43,814 $ 59,619

Loan Servicing, Mortgage Orig_2

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Tables)	3 Months Ended
	Mar. 31, 2019
Loan Servicing, Mortgage Origination, and Loans Held for Sale
Summary of changes in the fair value of MSRs and its offsetting hedge	Three Months Ended (Dollars in thousands) March 31, 2019 March 31, 2018 Increase (decrease) in fair value of MSRs $ $ 2,516 Decay of MSRs (929) Gain (loss) related to derivatives (1,554) Net effect on statements of income $ $ 33
Schedule of characteristics and sensitivity analysis of the MSR	March 31, December 31, March 31, (Dollars in thousands) 2019 2018 2018 Composition of residential loans serviced for others Fixed-rate mortgage loans 99.8 % 99.8 % 99.7 % Adjustable-rate mortgage loans 0.2 % 0.2 % 0.3 % Total 100.0 % 100.0 % 100.0 % Weighted average life 7.08 years 7.88 years 8.45 years Constant Prepayment rate (CPR) 8.8 % 7.3 % 6.3 % Weighted average discount rate 9.4 % 9.4 % 9.6 % Effect on fair value due to change in interest rates 25 basis point increase $ 2,044 $ 1,504 $ 1,025 50 basis point increase 3,747 2,740 1,791 25 basis point decrease (2,438) (1,981) (1,439) 50 basis point decrease (5,171) (4,421) (3,189)

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
Summary of Significant Accounting Policies
Existence of option to extend	true
Right to use asset	$ 82,787
Lease liabilities	$ 83,043
Maximum
Summary of Significant Accounting Policies
Renewal term	24 years
Adjustments | ASU 2016- 02
Summary of Significant Accounting Policies
Right to use asset		$ 82,200
Lease liabilities		$ 82,200

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Revenue from Contracts with Customers (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)contract	Mar. 31, 2018USD ($)contract
Summary of Significant Accounting Policies
Number of active contracts | contract	816,000	791,000
Transferred at Point in Time
Summary of Significant Accounting Policies
Revenue from contract with customers	$ 24,100	$ 33,800
Transferred over Time
Summary of Significant Accounting Policies
Revenue from contract with customers	5,000	4,800
Interchange and debit card transaction fees
Summary of Significant Accounting Policies
Revenue from contract with customers	2,600	7,600
Interchange and debit card transaction fees | Before 606
Summary of Significant Accounting Policies
Transaction fees	5,500	10,600
Network costs	2,900	3,000
Trust and investment services income
Summary of Significant Accounting Policies
Revenue from contract with customers	7,269	7,514
Deposit account services
Summary of Significant Accounting Policies
Revenue from contract with customers	$ 18,100	$ 25,800

Recent Accounting and Regulat_2

Recent Accounting and Regulatory Pronouncements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2019	Jan. 01, 2019
Right to use asset		$ 82,787
Lease liabilities		$ 83,043
ASU 2018- 02 | Early adoption
Reclassified to retained earnings from AOCI	$ 2,900
ASU 2016- 02 | Adjustments
Right to use asset			$ 82,200
Lease liabilities			$ 82,200

Investment Securities - Amortiz

Investment Securities - Amortized cost and fair value for held to maturity securities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Investment securities held to maturity
Amortized Cost			$ 1,274
Fair Value	$ 0	$ 1,284
State and municipal obligations
Investment securities held to maturity
Amortized Cost			1,274
Gross Unrealized Gains			10
Fair Value			$ 1,284

Investment Securities - Amort_2

Investment Securities - Amortized cost and fair value for available for sale securities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Investment securities available for sale
Amortized cost	$ 1,472,538	$ 1,540,650	$ 1,669,833
Gross Unrealized Gains	5,602	2,427	2,480
Gross Unrealized Losses	(11,891)	(26,010)	(31,476)
Fair Value	1,466,249	1,517,067	1,640,837
Government-sponsored entities debt
Investment securities available for sale
Amortized cost	65,567	48,982	91,483
Gross Unrealized Gains	441	21
Gross Unrealized Losses	(304)	(752)	(1,737)
Fair Value	65,704	48,251	89,746
State and municipal obligations
Investment securities available for sale
Amortized cost	190,302	200,184	224,994
Gross Unrealized Gains	3,170	1,709	2,232
Gross Unrealized Losses	(54)	(1,125)	(1,540)
Fair Value	193,418	200,768	225,686
Mortgage-backed securities
Investment securities available for sale
Amortized cost	1,216,669	1,291,484	1,353,356
Gross Unrealized Gains	1,991	697	248
Gross Unrealized Losses	(11,533)	(24,133)	(28,199)
Fair Value	1,207,127	1,268,048	1,325,405
Mortgage-backed securities issued by private label holdings
Investment securities available for sale
Fair Value	$ 0	$ 0	$ 0

Investment Securities - Amort_3

Investment Securities - Amortized cost and carrying value of other investment securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Other investment securities
Carrying Value	$ 40,624	$ 23,479	$ 25,604
Amortized Cost
Due in one year or less	9,437
Due after one year through five years	74,473
Due after five years through ten years	361,457
Due after ten years	1,027,171
Fair Value	1,472,538	1,669,833	1,540,650
Fair Value
Due in one year or less	9,415
Due after one year through five years	74,860
Due after five years through ten years	360,630
Due after ten years	1,021,344
Fair Value	1,466,249	1,640,837	1,517,067
Information with respect to sales of available-for-sale securities
Sale proceeds	134,486	5,215
Amortized Cost
Total		1,274
Fair Value
Fair Value	0		1,284
Investment in Federal Home Loan Bank Stock
Other investment securities
Carrying Value	34,544	17,399	19,524
Investment in unconsolidated subsidiaries
Other investment securities
Carrying Value	3,563	3,563	3,563
Other nonmarketable investment securities
Other investment securities
Carrying Value	$ 2,517	$ 2,517	$ 2,517

Investment Securities - Securit

Investment Securities - Securities with gross unrealized losses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Securities Held to Maturity, Fair Value
Less Than Twelve Months	$ 122,076	$ 456,013	$ 1,042,754
Twelve Months or More	867,514	802,413	360,489
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	775	6,042	19,471
Twelve Months or More	11,116	19,968	12,005
Government-sponsored entities debt
Securities Held to Maturity, Fair Value
Less Than Twelve Months	11,687	10,571	34,712
Twelve Months or More	30,490	32,959	55,034
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	49	100	918
Twelve Months or More	255	652	819
State and municipal obligations
Securities Held to Maturity, Fair Value
Less Than Twelve Months		40,387	69,118
Twelve Months or More	10,310	14,231	724
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months		760	1,523
Twelve Months or More	54	365	17
Mortgage-backed securities
Securities Held to Maturity, Fair Value
Less Than Twelve Months	110,389	405,055	938,924
Twelve Months or More	826,714	755,223	304,731
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	726	5,182	17,030
Twelve Months or More	$ 10,807	$ 18,951	$ 11,169

Loans and Allowance for Loan _3

Loans and Allowance for Loan Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Loans and Allowance for Loan Losses
Loans, net	$ 11,089,600	$ 10,962,037	$ 10,589,521
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	8,310,613	7,933,286	6,762,512
Less allowance for non-acquired loan losses	(52,008)	(51,194)	(45,203)	$ (43,448)
Loans, net	8,258,605	7,882,092	6,717,309
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	456,772	489,723	601,358
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	2,378,737	2,594,826	3,274,938
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	199,701	207,482	248,766
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	2,425,967	2,256,996	1,922,065
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	810,551	841,445	871,141
Less allowance for non-acquired loan losses	(5,371)	(5,682)	(5,847)	(5,921)
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	1,615,416	1,415,551	1,050,924
Less allowance for non-acquired loan losses	(9,740)	(8,754)	(6,798)	(6,525)
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	32,257	32,942	46,219
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	173,707	196,764	233,277
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	113,572	165,070	349,532
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	629,394	679,253	783,466
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,601,360	1,517,551	1,296,738
Less allowance for non-acquired loan losses	(9,629)	(9,369)	(8,346)	(8,128)
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	400,658	421,841	498,541
Consumer loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	2,513,640	2,431,413	2,061,083
Consumer loans | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	508,326	495,148	448,582
Less allowance for non-acquired loan losses	(3,273)	(3,434)	(3,237)	(3,250)
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	2,005,314	1,936,265	1,612,501
Less allowance for non-acquired loan losses	(12,058)	(11,913)	(10,193)	(9,668)
Consumer loans | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	225,278	242,425	295,721
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	610,376	628,813	683,614
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,072,070	1,054,952	872,363
Less allowance for non-acquired loan losses	(7,249)	(7,454)	(6,333)	(5,488)
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	10,925	10,043	24,295
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	173,840	212,537	344,171
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	214,235	214,353	198,684
Less allowance for non-acquired loan losses	(1,387)	(1,446)	(1,393)	(1,375)
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	120,696	133,110	186,091
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	465,117	448,664	390,784
Less allowance for non-acquired loan losses	(3,195)	(3,101)	(2,899)	(2,788)
Consumer | Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	465,117	448,664	390,784
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	40,182	42,492	48,801
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	104,923	111,777	133,802
Commercial loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	5,313,632	5,043,852	4,289,850
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	18,224	9,357	20,795
Less allowance for non-acquired loan losses	$ (106)	$ (41)	$ (157)	$ (305)

Loans and Allowance for Loan _4

Loans and Allowance for Loan Losses - Summary of acquired non credit impaired loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	$ 456,772	$ 489,723	$ 601,358
Less allowance for loan losses	(4,514)	(4,604)	(4,084)	$ (4,627)
Acquired loans, net	452,258	485,119	597,274	618,803
Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	2,378,737	2,594,826	3,274,938
Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	456,772	489,723	601,358
Less allowance for loan losses	(4,514)	(4,604)	(4,084)
Acquired loans, net	452,258	485,119	597,274
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	2,378,737	2,594,826	3,274,938
Unamortized Discounts	30,200	33,400	55,300
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	199,701	207,482	248,766
Less allowance for loan losses	(2,164)	(2,246)	(2,509)	(3,553)
Residential real estate | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	199,701	207,482	248,766
Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	742,966	844,323	1,132,998
Commercial owner occupied real estate loan | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	400,658	421,841	498,541
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	400,658	421,841	498,541
Consumer loans | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	40,182		48,801
Less allowance for loan losses	(707)	(761)	(594)	(461)
Consumer loans | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	835,654	871,238	979,335
Consumer loans | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	40,182	42,492	48,801
Consumer loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	940,577	983,015	1,113,137
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	10,925	10,043	24,295
Less allowance for loan losses	(79)	(79)	(505)	(145)
Commercial and industrial | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	173,840	212,537	344,171
Commercial and industrial | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	10,925	10,043	24,295
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	173,840	212,537	344,171
Other income producing property | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	120,696	133,110	186,091
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	120,696	133,110	186,091
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	40,182	42,492	48,801
Consumer | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	104,923	111,777	133,802
Commercial loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	1,438,160	1,611,811	2,161,801
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	32,257	32,942	46,219
Less allowance for loan losses	(717)	(717)	(215)	(180)
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	113,572	165,070	349,532
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	32,257	32,942	46,219
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	113,572	165,070	349,532
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	173,707	196,764	233,277
Less allowance for loan losses	(847)	(801)	(261)	$ (288)
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	629,394	679,253	783,466
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans accounted under FASB 310 30
Loans and Allowance for Loan Losses
Carrying value	173,707	196,764	233,277
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	629,394	679,253	783,466
Home equity loans | Consumer loans | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	225,278	242,425	295,721
Home equity loans | Consumer loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	225,278	242,425	295,721
Consumer | Consumer loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	104,923	111,777	133,802
Consumer Owner Occupied Loans | Consumer loans | Acquired non-credit impaired loans accounted under FASB 310 20
Loans and Allowance for Loan Losses
Carrying value	610,376	628,813	683,614
Consumer Owner Occupied Loans | Consumer loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Carrying value	$ 610,376	$ 628,813	$ 683,614

Loans and Allowance for Loan _5

Loans and Allowance for Loan Losses - Table of loan payment estimates (Details) - USD ($) $ in Thousands	Nov. 30, 2017	Jan. 03, 2017	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans			$ (4,514)	$ (4,084)	$ (4,604)	$ (4,627)
Contractual principal and interest			583,518	760,973	626,691
Non-accretable difference			(24,282)	(33,841)	(24,818)
Cash flows expected to be collected			559,236	727,132	601,873
Accretable Yield			(106,978)	(129,858)	(116,754)
Acquired loans, net			452,258	597,274	485,119	618,803
Acquired credit impaired loans | Park Sterling Corporation
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest	$ 113,584
Non-accretable difference	(27,248)
Cash flows expected to be collected	86,336
Accretable difference	(7,369)
Acquired loans, net	78,967
Acquired credit impaired loans | Southeastern Bank Financial
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest		$ 78,963
Non-accretable difference		(13,072)
Cash flows expected to be collected		65,891
Accretable difference		(4,910)
Acquired loans, net		60,981
Acquired non-credit impaired loans accounted under FASB 310 20
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest			2,400,000	3,300,000
After fair value adjustment			2,400,000	3,300,000
Fair value adjustment			30,200	55,300
Acquired non-credit impaired loans accounted under FASB 310 20 | Park Sterling Corporation
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest	2,100,000
After fair value adjustment	2,200,000
Fair value adjustment	$ 46,500
Acquired credit impaired loans accounted under FASB 310 30
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans			(4,514)	(4,084)	(4,604)
Acquired loans, net			452,258	597,274	485,119
Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Southeastern Bank Financial
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest		1,000,000
Acquired loans, net		986,500
Fair value adjustment		$ 18,800
Residential real estate | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans			(2,164)	(2,509)	(2,246)	(3,553)
Consumer loans | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans			(707)	(594)	(761)	(461)
Commercial and industrial | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans			(79)	(505)	(79)	(145)
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans			(717)	(215)	(717)	(180)
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans			$ (847)	$ (261)	$ (801)	$ (288)

Loans and Allowance for Loan _6

Loans and Allowance for Loan Losses - Changes in the carrying value of acquired credit impaired loans (Details)	Nov. 30, 2017USD ($)	Jan. 03, 2017USD ($)	Mar. 31, 2019USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2018USD ($)
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Percentage of loss adjustment based on most current collateral value					90
Maximum
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Threshold limit of loans for risk assessment by loan officers					$ 500,000
Minimum
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Threshold limit of loans for risk assessment by loan officers					$ 100,000
Acquired credit impaired loans
Changes in the carrying value of acquired loans at the acquisition date
Balance at the beginning of the period			$ 485,119,000	$ 618,803,000
Net reductions for payments, foreclosures, and accretion			(32,951,000)	(22,072,000)
Change in the allowance for loan losses on acquired loans			90,000	543,000
Balance at the end of the period			452,258,000	597,274,000
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Balance at beginning of period			116,754,000	133,096,000
Contractual interest income			(7,078,000)	(8,696,000)
Accretion on acquired loans			(5,120,000)	(3,801,000)
Reclass of nonaccretable difference due to improvement in expected cash flows			2,474,000	9,335,000
Other changes, net			(52,000)	(76,000)
Balance at end of period			106,978,000	129,858,000
Decline in accretable yield balance			9,800,000
Accretion income			12,200,000
Improved expected cash flows			2,500,000
Contractual principal and interest			583,518,000	760,973,000		$ 626,691,000
Acquired credit impaired loans | Southeastern Bank Financial
Changes in the carrying value of acquired loans at the acquisition date
Balance at the end of the period		$ 60,981,000
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Contractual principal and interest		$ 78,963,000
Acquired credit impaired loans | Park Sterling Corporation
Changes in the carrying value of acquired loans at the acquisition date
Balance at the end of the period	$ 78,967,000
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Contractual principal and interest	113,584,000
Acquired non-credit impaired loans accounted under FASB 310 20
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Contractual principal and interest			2,400,000,000	3,300,000,000
After fair value adjustment			2,400,000,000	3,300,000,000
Fair value adjustment			$ 30,200,000	$ 55,300,000
Acquired non-credit impaired loans accounted under FASB 310 20 | Park Sterling Corporation
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Contractual principal and interest	2,100,000,000
After fair value adjustment	2,200,000,000
Fair value adjustment	$ 46,500,000

Loans and Allowance for Loan _7

Loans and Allowance for Loan Losses - Aggregated analysis of the changes in allowance for loan losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Changes in allowance for loan losses
Balance at beginning of period	$ 55,798	$ 48,075
Loans charged-off	(1,619)	(1,503)
Recoveries of loans previously charged off	958	967
Net charge-offs	(661)	(536)
Provision for loan losses charged to operations	1,488	2,454
Reduction due to loan removals	(103)	(706)
Balance at end of period	56,522	49,287
Non-acquired loans
Changes in allowance for loan losses
Balance at beginning of period	51,194	43,448
Loans charged-off	(1,245)	(1,169)
Recoveries of loans previously charged off	752	802
Net charge-offs	(493)	(367)
Provision for loan losses charged to operations	1,307	2,122
Balance at end of period	52,008	45,203
Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(374)	(334)
Recoveries of loans previously charged off	206	165
Net charge-offs	(168)	(169)
Provision for loan losses charged to operations	168	169
Acquired credit impaired loans
Changes in allowance for loan losses
Balance at beginning of period	4,604	4,627
Provision for loan losses charged to operations	13	163
Reduction due to loan removals	(103)	(706)
Balance at end of period	4,514	4,084
Residential real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Reduction due to loan removals	(98)	(100)
Commercial owner occupied real estate loan | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(12)
Recoveries of loans previously charged off	25	8
Provision for loan losses charged to operations	247	210
Commercial and industrial | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(19)	(85)
Recoveries of loans previously charged off	71	15
Provision for loan losses charged to operations	(257)	915
Commercial and industrial | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(134)	(43)
Recoveries of loans previously charged off	165	53
Provision for loan losses charged to operations	(31)	(10)
Commercial and industrial | Acquired credit impaired loans
Changes in allowance for loan losses
Reduction due to loan removals		(540)
Other income producing property | Non-acquired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off	45	8
Provision for loan losses charged to operations	(104)	10
Other income producing property | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(26)
Provision for loan losses charged to operations	26
Consumer | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(1,162)	(979)
Recoveries of loans previously charged off	252	203
Provision for loan losses charged to operations	1,004	887
Consumer | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(136)	(138)
Recoveries of loans previously charged off	16	3
Provision for loan losses charged to operations	120	135
Other loans | Non-acquired loans
Changes in allowance for loan losses
Provision for loan losses charged to operations	65	(148)
Construction and land development | Commercial non-owner occupied real estate | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off		(35)
Recoveries of loans previously charged off	299	442
Provision for loan losses charged to operations	(610)	(481)
Construction and land development | Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(6)	(1)
Recoveries of loans previously charged off	1	1
Provision for loan losses charged to operations	5
Construction and land development | Commercial non-owner occupied real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Reduction due to loan removals		(53)
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Non-acquired loans
Changes in allowance for loan losses
Recoveries of loans previously charged off	22	2
Provision for loan losses charged to operations	964	271
Other commercial non-owner occupied real estate | Commercial non-owner occupied real estate | Acquired credit impaired loans
Changes in allowance for loan losses
Reduction due to loan removals	(5)	(13)
Home equity loans | Consumer loans | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(15)	(66)
Recoveries of loans previously charged off	36	101
Provision for loan losses charged to operations	(182)	(48)
Home equity loans | Consumer loans | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off	(72)	(82)
Recoveries of loans previously charged off	22	51
Provision for loan losses charged to operations	50	31
Consumer Owner Occupied Loans | Consumer loans | Non-acquired loans
Changes in allowance for loan losses
Loans charged-off	(37)	(4)
Recoveries of loans previously charged off	2	23
Provision for loan losses charged to operations	180	506
Consumer Owner Occupied Loans | Consumer loans | Acquired non-credit impaired loans
Changes in allowance for loan losses
Loans charged-off		(70)
Recoveries of loans previously charged off	2	57
Provision for loan losses charged to operations	$ (2)	$ 13

Loans and Allowance for Loan _8

Loans and Allowance for Loan Losses - Disaggregated analysis of activity in for allowances for non acquired loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Allowance for loan losses:
Charge-offs	$ (1,619)	$ (1,503)
Recoveries	958	967
Provision (benefit)	1,488	2,454
Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	51,194	43,448
Charge-offs	(1,245)	(1,169)
Recoveries	752	802
Provision (benefit)	1,307	2,122
Balance at end of period	52,008	45,203
Loans individually evaluated for impairment	1,599	1,712
Loans collectively evaluated for impairment	50,409	43,491
Loans:
Loans individually evaluated for impairment	56,273	66,696
Loans collectively evaluated for impairment	8,254,340	6,695,816
Total loans	8,310,613	6,762,512	$ 7,933,286
Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(374)	(334)
Recoveries	206	165
Provision (benefit)	168	169
Loans:
Loans collectively evaluated for impairment	2,378,737	3,274,938
Total loans	2,378,737	3,274,938	2,594,826
Commercial non-owner occupied real estate | Non-acquired loans
Loans:
Total loans	2,425,967	1,922,065	2,256,996
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Allowance for loan losses:
Balance at beginning of period	5,682	5,921
Charge-offs		(35)
Recoveries	299	442
Provision (benefit)	(610)	(481)
Balance at end of period	5,371	5,847
Loans individually evaluated for impairment	786	767
Loans collectively evaluated for impairment	4,585	5,080
Loans:
Loans individually evaluated for impairment	38,257	46,198
Loans collectively evaluated for impairment	772,294	824,943
Total loans	810,551	871,141	841,445
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Allowance for loan losses:
Balance at beginning of period	8,754	6,525
Recoveries	22	2
Provision (benefit)	964	271
Balance at end of period	9,740	6,798
Loans individually evaluated for impairment	60	110
Loans collectively evaluated for impairment	9,680	6,688
Loans:
Loans individually evaluated for impairment	375	1,181
Loans collectively evaluated for impairment	1,615,041	1,049,743
Total loans	1,615,416	1,050,924	1,415,551
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Allowance for loan losses:
Charge-offs	(6)	(1)
Recoveries	1	1
Provision (benefit)	5
Loans:
Loans collectively evaluated for impairment	113,572	349,532
Total loans	113,572	349,532	165,070
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans:
Loans collectively evaluated for impairment	629,394	783,466
Total loans	629,394	783,466	679,253
Commercial owner occupied real estate loan | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	9,369	8,128
Charge-offs	(12)
Recoveries	25	8
Provision (benefit)	247	210
Balance at end of period	9,629	8,346
Loans individually evaluated for impairment	21	63
Loans collectively evaluated for impairment	9,608	8,283
Loans:
Loans individually evaluated for impairment	4,220	5,578
Loans collectively evaluated for impairment	1,597,140	1,291,160
Total loans	1,601,360	1,296,738	1,517,551
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	400,658	498,541
Total loans	400,658	498,541	421,841
Consumer loans | Non-acquired loans
Loans:
Total loans	2,513,640	2,061,083	2,431,413
Consumer loans | Non-acquired loans | Home equity loans
Allowance for loan losses:
Balance at beginning of period	3,434	3,250
Charge-offs	(15)	(66)
Recoveries	36	101
Provision (benefit)	(182)	(48)
Balance at end of period	3,273	3,237
Loans individually evaluated for impairment	161	73
Loans collectively evaluated for impairment	3,112	3,164
Loans:
Loans individually evaluated for impairment	2,754	3,168
Loans collectively evaluated for impairment	505,572	445,414
Total loans	508,326	448,582	495,148
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Balance at beginning of period	11,913	9,668
Charge-offs	(37)	(4)
Recoveries	2	23
Provision (benefit)	180	506
Balance at end of period	12,058	10,193
Loans individually evaluated for impairment	37	35
Loans collectively evaluated for impairment	12,021	10,158
Loans:
Loans individually evaluated for impairment	6,885	5,493
Loans collectively evaluated for impairment	1,998,429	1,607,008
Total loans	2,005,314	1,612,501	1,936,265
Consumer loans | Acquired non-credit impaired loans | Home equity loans
Allowance for loan losses:
Charge-offs	(72)	(82)
Recoveries	22	51
Provision (benefit)	50	31
Loans:
Loans collectively evaluated for impairment	225,278	295,721
Total loans	225,278	295,721	242,425
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Allowance for loan losses:
Charge-offs		(70)
Recoveries	2	57
Provision (benefit)	(2)	13
Loans:
Loans collectively evaluated for impairment	610,376	683,614
Total loans	610,376	683,614	628,813
Commercial and industrial | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	7,454	5,488
Charge-offs	(19)	(85)
Recoveries	71	15
Provision (benefit)	(257)	915
Balance at end of period	7,249	6,333
Loans individually evaluated for impairment	420	489
Loans collectively evaluated for impairment	6,829	5,844
Loans:
Loans individually evaluated for impairment	1,315	1,677
Loans collectively evaluated for impairment	1,070,755	870,686
Total loans	1,072,070	872,363	1,054,952
Commercial and industrial | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(134)	(43)
Recoveries	165	53
Provision (benefit)	(31)	(10)
Loans:
Loans collectively evaluated for impairment	173,840	344,171
Total loans	173,840	344,171	212,537
Other income producing property | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	1,446	1,375
Recoveries	45	8
Provision (benefit)	(104)	10
Balance at end of period	1,387	1,393
Loans individually evaluated for impairment	111	166
Loans collectively evaluated for impairment	1,276	1,227
Loans:
Loans individually evaluated for impairment	2,357	3,086
Loans collectively evaluated for impairment	211,878	195,598
Total loans	214,235	198,684	214,353
Other income producing property | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(26)
Provision (benefit)	26
Loans:
Loans collectively evaluated for impairment	120,696	186,091
Total loans	120,696	186,091	133,110
Consumer | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	3,101	2,788
Charge-offs	(1,162)	(979)
Recoveries	252	203
Provision (benefit)	1,004	887
Balance at end of period	3,195	2,899
Loans individually evaluated for impairment	3	9
Loans collectively evaluated for impairment	3,192	2,890
Loans:
Loans individually evaluated for impairment	110	315
Loans collectively evaluated for impairment	465,007	390,469
Total loans	465,117	390,784	448,664
Consumer | Non-acquired loans | Consumer
Loans:
Total loans	465,117	390,784	448,664
Consumer | Acquired non-credit impaired loans
Allowance for loan losses:
Charge-offs	(136)	(138)
Recoveries	16	3
Provision (benefit)	120	135
Loans:
Loans collectively evaluated for impairment	104,923	133,802
Total loans	104,923	133,802	111,777
Commercial loans | Non-acquired loans
Loans:
Total loans	5,313,632	4,289,850	5,043,852
Other loans | Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	41	305
Provision (benefit)	65	(148)
Balance at end of period	106	157
Loans collectively evaluated for impairment	106	157
Loans:
Loans collectively evaluated for impairment	18,224	20,795
Total loans	$ 18,224	$ 20,795	$ 9,357

Loans and Allowance for Loan _9

Loans and Allowance for Loan Losses - Disaggregated analysis of activity in the allowance for acquired credit impaired loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Allowance for loan losses:
Reduction due to loan removals	$ (103)	$ (706)
Non-acquired loans
Allowance for loan losses:
Loans individually evaluated for impairment	1,599	1,712
Loans collectively evaluated for impairment	50,409	43,491
Loans:
Loans individually evaluated for impairment	56,273	66,696
Loans collectively evaluated for impairment	8,254,340	6,695,816
Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	4,604	4,627
Provision (benefit) for loan losses	13	163
Reduction due to loan removals	(103)	(706)
Balance at the end of the period	4,514	4,084
Loans collectively evaluated for impairment	4,514	4,084
Loans:
Loans collectively evaluated for impairment	456,772	601,358
Carrying value	456,772	601,358	$ 489,723
Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	2,378,737	3,274,938
Carrying value	2,378,737	3,274,938	2,594,826
Residential real estate | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	2,246	3,553
Provision (benefit) for loan losses	16	(944)
Reduction due to loan removals	(98)	(100)
Balance at the end of the period	2,164	2,509
Loans collectively evaluated for impairment	2,164	2,509
Loans:
Loans collectively evaluated for impairment	199,701	248,766
Carrying value	199,701	248,766	207,482
Commercial non-owner occupied real estate | Construction and land development | Non-acquired loans
Allowance for loan losses:
Loans individually evaluated for impairment	786	767
Loans collectively evaluated for impairment	4,585	5,080
Loans:
Loans individually evaluated for impairment	38,257	46,198
Loans collectively evaluated for impairment	772,294	824,943
Commercial non-owner occupied real estate | Construction and land development | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	717	180
Provision (benefit) for loan losses		88
Reduction due to loan removals		(53)
Balance at the end of the period	717	215
Loans collectively evaluated for impairment	717	215
Loans:
Loans collectively evaluated for impairment	32,257	46,219
Carrying value	32,257	46,219	32,942
Commercial non-owner occupied real estate | Construction and land development | Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	113,572	349,532
Carrying value	113,572	349,532	165,070
Commercial non-owner occupied real estate | Other commercial non-owner occupied real estate | Non-acquired loans
Allowance for loan losses:
Loans individually evaluated for impairment	60	110
Loans collectively evaluated for impairment	9,680	6,688
Loans:
Loans individually evaluated for impairment	375	1,181
Loans collectively evaluated for impairment	1,615,041	1,049,743
Commercial non-owner occupied real estate | Other commercial non-owner occupied real estate | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	801	288
Provision (benefit) for loan losses	51	(14)
Reduction due to loan removals	(5)	(13)
Balance at the end of the period	847	261
Loans collectively evaluated for impairment	847	261
Loans:
Loans collectively evaluated for impairment	173,707	233,277
Carrying value	173,707	233,277	196,764
Commercial non-owner occupied real estate | Other commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	629,394	783,466
Carrying value	629,394	783,466	679,253
Consumer loans | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	761	461
Provision (benefit) for loan losses	(54)	133
Balance at the end of the period	707	594
Loans collectively evaluated for impairment	707	594
Loans:
Loans collectively evaluated for impairment	40,182	48,801
Carrying value	40,182	48,801
Consumer loans | Acquired non-credit impaired loans
Loans:
Carrying value	940,577	1,113,137	983,015
Consumer loans | Home equity loans | Non-acquired loans
Allowance for loan losses:
Loans individually evaluated for impairment	161	73
Loans collectively evaluated for impairment	3,112	3,164
Loans:
Loans individually evaluated for impairment	2,754	3,168
Loans collectively evaluated for impairment	505,572	445,414
Consumer loans | Home equity loans | Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	225,278	295,721
Carrying value	225,278	295,721	242,425
Commercial and industrial | Non-acquired loans
Allowance for loan losses:
Loans individually evaluated for impairment	420	489
Loans collectively evaluated for impairment	6,829	5,844
Loans:
Loans individually evaluated for impairment	1,315	1,677
Loans collectively evaluated for impairment	1,070,755	870,686
Commercial and industrial | Acquired credit impaired loans
Allowance for loan losses:
Balance at the beginning of the period	79	145
Provision (benefit) for loan losses		900
Reduction due to loan removals		(540)
Balance at the end of the period	79	505
Loans collectively evaluated for impairment	79	505
Loans:
Loans collectively evaluated for impairment	10,925	24,295
Carrying value	10,925	24,295	10,043
Commercial and industrial | Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	173,840	344,171
Carrying value	173,840	344,171	212,537
Other income producing property | Non-acquired loans
Allowance for loan losses:
Loans individually evaluated for impairment	111	166
Loans collectively evaluated for impairment	1,276	1,227
Loans:
Loans individually evaluated for impairment	2,357	3,086
Loans collectively evaluated for impairment	211,878	195,598
Other income producing property | Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	120,696	186,091
Carrying value	120,696	186,091	133,110
Consumer | Non-acquired loans
Allowance for loan losses:
Loans individually evaluated for impairment	3	9
Loans collectively evaluated for impairment	3,192	2,890
Loans:
Loans individually evaluated for impairment	110	315
Loans collectively evaluated for impairment	465,007	390,469
Consumer | Acquired credit impaired loans
Loans:
Carrying value	40,182	48,801	42,492
Consumer | Acquired non-credit impaired loans
Loans:
Loans collectively evaluated for impairment	104,923	133,802
Commercial loans | Acquired non-credit impaired loans
Loans:
Carrying value	$ 1,438,160	$ 2,161,801	$ 1,611,811

Loans and Allowance for Loan_10

Loans and Allowance for Loan Losses - Credit risk profile by risk grade of non acquired loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Loans and Allowance for Loan Losses
Other Real Estate, Non Covered	$ 11,297	$ 11,410	$ 11,073	$ 11,203
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	8,310,613	7,933,286	6,762,512
Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	8,190,887	7,813,938	6,645,048
Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	66,373	66,645	79,619
Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	53,353	52,703	37,845
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	2,378,737	2,594,826	3,274,938
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,378,737	2,594,826	3,274,938
Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,292,765	2,523,010	3,207,265
Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	59,811	48,716	45,043
Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	26,161	23,100	22,630
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	456,772	489,723	601,358
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	456,772	489,723	601,358
Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	274,474	296,106	354,448
Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	71,026	74,388	97,510
Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	111,272	119,229	149,400
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	199,701	207,482	248,766
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	199,701	207,482	248,766
Residential real estate | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	100,803	104,181	129,952
Residential real estate | Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	40,036	41,964	50,845
Residential real estate | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	58,862	61,337	67,969
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	2,425,967	2,256,996	1,922,065
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	810,551	841,445	871,141
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Total loans	801,949	832,612	857,307
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Total loans	5,303	6,015	10,499
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Total loans	3,299	2,818	3,335
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	1,615,416	1,415,551	1,050,924
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Total loans	1,607,034	1,407,744	1,040,669
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Total loans	7,372	6,427	8,497
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Total loans	1,010	1,380	1,758
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	113,572	165,070	349,532
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	113,572	165,070	349,532
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	111,414	163,777	345,635
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	845	838	2,892
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,313	455	1,005
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	629,394	679,253	783,466
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	629,394	679,253	783,466
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	615,277	665,913	775,924
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	13,682	13,018	7,533
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	435	322	9
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	32,257	32,942	46,219
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	32,257	32,942	46,219
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	20,950	20,293	28,501
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	3,500	3,001	4,654
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	7,807	9,648	13,064
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	173,707	196,764	233,277
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	173,707	196,764	233,277
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	140,785	160,788	171,585
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	13,025	14,393	24,550
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	19,897	21,583	37,142
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,601,360	1,517,551	1,296,738
Commercial owner occupied real estate loan | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,564,083	1,480,267	1,267,759
Commercial owner occupied real estate loan | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	24,241	24,576	22,619
Commercial owner occupied real estate loan | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	13,036	12,708	6,360
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	400,658	421,841	498,541
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	400,658	421,841	498,541
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	380,536	411,783	490,089
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	15,440	5,664	8,254
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,682	4,394	198
Consumer loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	2,513,640	2,431,413	2,061,083
Consumer loans | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	508,326	495,148	448,582
Consumer loans | Non-acquired loans | Home equity loans | Pass
Loans and Allowance for Loan Losses
Total loans	495,127	481,607	435,282
Consumer loans | Non-acquired loans | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Total loans	6,915	7,293	6,767
Consumer loans | Non-acquired loans | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Total loans	6,284	6,248	6,533
Consumer loans | Non-acquired loans | All Consumer
Loans and Allowance for Loan Losses
Total loans	2,996,981	2,889,434	2,472,662
Consumer loans | Non-acquired loans | All Consumer | Pass
Loans and Allowance for Loan Losses
Total loans	2,954,744	2,847,214	2,429,890
Consumer loans | Non-acquired loans | All Consumer | Special mention
Loans and Allowance for Loan Losses
Total loans	18,151	19,034	20,397
Consumer loans | Non-acquired loans | All Consumer | Substandard
Loans and Allowance for Loan Losses
Total loans	24,086	23,186	22,375
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	2,005,314	1,936,265	1,612,501
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,978,122	1,909,427	1,584,427
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans | Special mention
Loans and Allowance for Loan Losses
Total loans	10,769	11,304	13,329
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans | Substandard
Loans and Allowance for Loan Losses
Total loans	16,423	15,534	14,745
Consumer loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	940,577	983,015	1,113,137
Consumer loans | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	909,193	953,739	1,087,383
Consumer loans | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	15,614	16,254	13,946
Consumer loans | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	15,770	13,022	11,808
Consumer loans | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	225,278	242,425	295,721
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	225,278	242,425	295,721
Consumer loans | Acquired non-credit impaired loans | Home equity loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	210,066	227,515	279,487
Consumer loans | Acquired non-credit impaired loans | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	7,623	7,688	8,942
Consumer loans | Acquired non-credit impaired loans | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	7,589	7,222	7,292
Consumer loans | Acquired non-credit impaired loans | Consumer
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	104,923	111,777	133,802
Consumer loans | Acquired non-credit impaired loans | Consumer | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	101,907	108,833	130,915
Consumer loans | Acquired non-credit impaired loans | Consumer | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	666	698	520
Consumer loans | Acquired non-credit impaired loans | Consumer | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,350	2,246	2,367
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	610,376	628,813	683,614
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	610,376	628,813	683,614
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	597,220	617,391	676,981
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	7,325	7,868	4,484
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	5,831	3,554	2,149
Consumer loans | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	40,182		48,801
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,072,070	1,054,952	872,363
Commercial and industrial | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,054,732	1,037,915	857,567
Commercial and industrial | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	7,056	5,887	12,286
Commercial and industrial | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	10,282	11,150	2,510
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	173,840	212,537	344,171
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	173,840	212,537	344,171
Commercial and industrial | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	163,298	202,399	327,409
Commercial and industrial | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	7,897	6,523	8,049
Commercial and industrial | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,645	3,615	8,713
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	10,925	10,043	24,295
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	10,925	10,043	24,295
Commercial and industrial | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	6,802	5,093	17,163
Commercial and industrial | Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	530	546	1,132
Commercial and industrial | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	3,593	4,404	6,000
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	214,235	214,353	198,684
Other income producing property | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	208,345	208,186	191,856
Other income producing property | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	4,250	4,706	5,321
Other income producing property | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,640	1,461	1,507
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	120,696	133,110	186,091
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	120,696	133,110	186,091
Other income producing property | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	113,047	125,399	180,825
Other income producing property | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	6,333	6,419	4,369
Other income producing property | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,316	1,292	897
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	465,117	448,664	390,784
Consumer | Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	465,117	448,664	390,784
Consumer | Non-acquired loans | Consumer | Pass
Loans and Allowance for Loan Losses
Total loans	463,271	446,823	389,386
Consumer | Non-acquired loans | Consumer | Special mention
Loans and Allowance for Loan Losses
Total loans	467	437	301
Consumer | Non-acquired loans | Consumer | Substandard
Loans and Allowance for Loan Losses
Total loans	1,379	1,404	1,097
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	104,923	111,777	133,802
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	40,182	42,492	48,801
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	40,182	42,492	48,801
Consumer | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	5,134	5,751	7,247
Consumer | Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	13,935	14,484	16,329
Consumer | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	21,113	22,257	25,225
Commercial loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	5,313,632	5,043,852	4,289,850
Commercial loans | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	5,236,143	4,966,724	4,215,158
Commercial loans | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	48,222	47,611	59,222
Commercial loans | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	29,267	29,517	15,470
Commercial loans | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,438,160	1,611,811	2,161,801
Commercial loans | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,383,572	1,569,271	2,119,882
Commercial loans | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	44,197	32,462	31,097
Commercial loans | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	10,391	10,078	10,822
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	18,224	9,357	20,795
Other loans | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	$ 18,224	$ 9,357	$ 20,795

Loans and Allowance for Loan_11

Loans and Allowance for Loan Losses - Aging analysis of past due loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Non-acquired loans
Loans and Allowance for Loan Losses
Past due	$ 21,435	$ 14,555	$ 15,273
Current	8,289,178	7,918,731	6,747,239
Total loans	8,310,613	7,933,286	6,762,512
Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	11,948	6,108	5,538
Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,098	3,459	2,652
Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	6,389	4,988	7,083
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	21,082	26,998	40,523
Current	435,690	462,725	560,835
Total loans	456,772	489,723	601,358
Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,690	8,770	11,448
Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,462	1,465	8,952
Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	15,930	16,763	20,123
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	13,610	15,532	14,734
Current	2,365,127	2,579,294	3,260,204
Total loans	2,378,737	2,594,826	3,274,938
Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	4,840	8,456	8,743
Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,390	2,750	1,258
Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	6,380	4,326	4,733
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	9,948	14,358	16,158
Current	189,753	193,124	232,608
Total loans	199,701	207,482	248,766
Residential real estate | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,529	4,620	4,497
Residential real estate | Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,034	1,251	3,063
Residential real estate | Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	6,385	8,487	8,598
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	2,425,967	2,256,996	1,922,065
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	987	1,450	810
Current	809,564	839,995	870,331
Total loans	810,551	841,445	871,141
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	563	693	673
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	141	305	4
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	283	452	133
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Past due	22	482	816
Current	1,615,394	1,415,069	1,050,108
Total loans	1,615,416	1,415,551	1,050,924
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due		68	89
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due		18	20
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	22	396	707
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	2,481	2,943	3,812
Current	29,776	29,999	42,407
Total loans	32,257	32,942	46,219
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due		115	53
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due		12	321
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,481	2,816	3,438
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Past due	4,985	5,521	17,575
Current	168,722	191,243	215,702
Total loans	173,707	196,764	233,277
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	788	876	6,043
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	238	112	5,293
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,959	4,533	6,239
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Past due	863	1,057	2,191
Current	112,709	164,013	347,341
Total loans	113,572	165,070	349,532
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	521	647	1,788
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	116	45	115
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	226	365	288
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Past due	385	911	376
Current	629,009	678,342	783,090
Total loans	629,394	679,253	783,466
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	96	607	242
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due		21
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	289	283	134
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	5,781	4,038	3,493
Current	1,595,579	1,513,513	1,293,245
Total loans	1,601,360	1,517,551	1,296,738
Commercial owner occupied real estate loan | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	3,336	1,639	573
Commercial owner occupied real estate loan | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,556	1,495	1,218
Commercial owner occupied real estate loan | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	889	904	1,702
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	2,105	1,970	1,142
Current	398,553	419,871	497,399
Total loans	400,658	421,841	498,541
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	659	964	1,142
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	237	1,006
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,209
Consumer loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	2,513,640	2,431,413	2,061,083
Consumer loans | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Past due	1,561	1,989	2,940
Current	506,765	493,159	445,642
Total loans	508,326	495,148	448,582
Consumer loans | Non-acquired loans | Home equity loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	333	744	1,452
Consumer loans | Non-acquired loans | Home equity loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	206	532	65
Consumer loans | Non-acquired loans | Home equity loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,022	713	1,423
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Past due	5,182	3,192	3,473
Current	2,000,132	1,933,073	1,609,028
Total loans	2,005,314	1,936,265	1,612,501
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,929	1,460	1,274
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	743	789	601
Consumer loans | Non-acquired loans | Consumer Owner Occupied Loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,510	943	1,598
Consumer loans | Non-acquired loans | All Consumer
Loans and Allowance for Loan Losses
Total loans	2,996,981	2,889,434	2,472,662
Consumer loans | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Past due	4,018	3,937	4,839
Current	221,260	238,488	290,882
Total loans	225,278	242,425	295,721
Consumer loans | Acquired non-credit impaired loans | Home equity loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,483	1,286	1,881
Consumer loans | Acquired non-credit impaired loans | Home equity loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	298	442	833
Consumer loans | Acquired non-credit impaired loans | Home equity loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,237	2,209	2,125
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Past due	2,389	2,537	2,166
Current	607,987	626,276	681,448
Total loans	610,376	628,813	683,614
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	349	1,127	1,304
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	72	621	76
Consumer loans | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,968	789	786
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	5,494	1,591	2,358
Current	1,066,576	1,053,361	870,005
Total loans	1,072,070	1,054,952	872,363
Commercial and industrial | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	4,658	898	983
Commercial and industrial | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	222	120	476
Commercial and industrial | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	614	573	899
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	2,514	2,525	875
Current	8,411	7,518	23,420
Total loans	10,925	10,043	24,295
Commercial and industrial | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due		2,437	55
Commercial and industrial | Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	2,514	88	820
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	2,682	2,797	2,112
Current	171,158	209,740	342,059
Total loans	173,840	212,537	344,171
Commercial and industrial | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,185	2,648	1,998
Commercial and industrial | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	1,479	130	27
Commercial and industrial | Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	18	19	87
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	1,030	484	593
Current	213,205	213,869	198,091
Total loans	214,235	214,353	198,684
Other income producing property | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	658	169	360
Other income producing property | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due		26	108
Other income producing property | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	372	289	125
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	328	1,008	365
Current	120,368	132,102	185,726
Total loans	120,696	133,110	186,091
Other income producing property | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	210	603	101
Other income producing property | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	81	276	69
Other income producing property | Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	37	129	195
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Past due	1,378	1,329	790
Current	463,739	447,335	389,994
Total loans	465,117	448,664	390,784
Consumer | Non-acquired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	471	437	134
Consumer | Non-acquired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	230	174	160
Consumer | Non-acquired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	677	718	496
Consumer | Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	465,117	448,664	390,784
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Past due	1,154	1,651	2,103
Current	39,028	40,841	46,698
Total loans	40,182	42,492	48,801
Consumer | Acquired credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	373	722	800
Consumer | Acquired credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	190	90	275
Consumer | Acquired credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	591	839	1,028
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Past due	840	1,315	1,543
Current	104,083	110,462	132,259
Total loans	104,923	111,777	133,802
Consumer | Acquired non-credit impaired loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	337	574	287
Consumer | Acquired non-credit impaired loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	107	209	138
Consumer | Acquired non-credit impaired loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Past due	396	532	1,118
Commercial loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	5,313,632	5,043,852	4,289,850
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Current	18,224	9,357	20,795
Total loans	$ 18,224	$ 9,357	$ 20,795

Loans and Allowance for Loan_12

Loans and Allowance for Loan Losses - Nonaccrual loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	$ 15,414	$ 14,109	$ 14,827
Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	58,849	80,646	59,460
Recorded Investment With No Allowance	10,072	10,591	10,714
Gross Recorded Investment With Allowance	46,201	56,105	46,304
Total Recorded Investment	56,273	66,696	57,018
Related Allowance	1,599	1,712	1,628
Average Investment In Impaired Loans	56,645	65,061
Interest Income Recognized	681	728
Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	14,294	8,076	13,489
Commercial non-owner occupied real estate | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	919	1,674	1,255
Commercial non-owner occupied real estate | Non acquired non-accrual loans | Construction and land development
Loans and Allowance for Loan Losses
Nonaccrual loans	414	500	424
Commercial non-owner occupied real estate | Non acquired non-accrual loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	505	1,174	831
Commercial non-owner occupied real estate | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Construction and land development
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	38,668	50,399	38,314
Recorded Investment With No Allowance	343	476	339
Gross Recorded Investment With Allowance	37,914	45,722	37,574
Total Recorded Investment	38,257	46,198	37,913
Related Allowance	786	767	788
Average Investment In Impaired Loans	38,085	44,714
Interest Income Recognized	481	513
Commercial non-owner occupied real estate | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	514	2,916	1,157
Recorded Investment With No Allowance	99	659	536
Gross Recorded Investment With Allowance	276	522	489
Total Recorded Investment	375	1,181	1,025
Related Allowance	60	110	70
Average Investment In Impaired Loans	700	1,278
Interest Income Recognized	2	5
Commercial non-owner occupied real estate | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,403	426	535
Commercial non-owner occupied real estate | Acquired non-credit impaired non-accrual including restructured loans | Construction and land development
Loans and Allowance for Loan Losses
Nonaccrual loans	1,114	426	252
Commercial non-owner occupied real estate | Acquired non-credit impaired non-accrual including restructured loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	289		283
Commercial owner occupied real estate loan | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,215	1,647	1,068
Commercial owner occupied real estate loan | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	5,158	8,972	5,085
Recorded Investment With No Allowance	3,130	3,273	3,101
Gross Recorded Investment With Allowance	1,090	2,305	1,041
Total Recorded Investment	4,220	5,578	4,142
Related Allowance	21	63	27
Average Investment In Impaired Loans	4,181	5,610
Interest Income Recognized	67	75
Commercial owner occupied real estate loan | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,664	178	1,470
Consumer loans | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	10,324	8,134	9,442
Consumer loans | Non acquired non-accrual loans | Home equity loans
Loans and Allowance for Loan Losses
Nonaccrual loans	2,666	2,593	2,333
Consumer loans | Non acquired non-accrual loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Nonaccrual loans	7,658	5,541	7,109
Consumer loans | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Home equity loans
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	2,885	3,855	2,953
Recorded Investment With No Allowance	1,136	1,105	1,129
Gross Recorded Investment With Allowance	1,618	2,063	1,697
Total Recorded Investment	2,754	3,168	2,826
Related Allowance	161	73	142
Average Investment In Impaired Loans	2,790	3,090
Interest Income Recognized	32	29
Consumer loans | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20 | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	7,462	7,245	7,291
Recorded Investment With No Allowance	5,223	4,332	4,992
Gross Recorded Investment With Allowance	1,662	1,161	1,769
Total Recorded Investment	6,885	5,493	6,761
Related Allowance	37	35	41
Average Investment In Impaired Loans	6,823	5,563
Interest Income Recognized	49	43
Consumer loans | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	8,443	5,358	8,376
Consumer loans | Acquired non-credit impaired non-accrual including restructured loans | Home equity loans
Loans and Allowance for Loan Losses
Nonaccrual loans	4,750	3,931	4,512
Consumer loans | Acquired non-credit impaired non-accrual including restructured loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Nonaccrual loans	3,693	1,427	3,864
Commercial and industrial | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	286	799	647
Commercial and industrial | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	1,357	2,679	1,332
Recorded Investment With No Allowance		634	467
Gross Recorded Investment With Allowance	1,315	1,043	824
Total Recorded Investment	1,315	1,677	1,291
Related Allowance	420	489	416
Average Investment In Impaired Loans	1,303	1,417
Interest Income Recognized	20	17
Commercial and industrial | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	915	138	1,296
Other income producing property | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	596	170	500
Other income producing property | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	2,605	3,793	3,117
Recorded Investment With No Allowance	141	112	150
Gross Recorded Investment With Allowance	2,216	2,974	2,722
Total Recorded Investment	2,357	3,086	2,872
Related Allowance	111	166	142
Average Investment In Impaired Loans	2,614	3,112
Interest Income Recognized	30	46
Other income producing property | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	205	325	244
Consumer | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,244	903	1,267
Consumer | Impaired non-acquired and acquired loans accounted under FASB ASC topic 310-20
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	200	787	211
Gross Recorded Investment With Allowance	110	315	188
Total Recorded Investment	110	315	188
Related Allowance	3	9	2
Average Investment In Impaired Loans	149	277
Consumer | Acquired non-credit impaired non-accrual including restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	$ 1,664	1,651	1,568
Restructured loans | ASC Topic 31020 Loans
Loans and Allowance for Loan Losses
Number of months generally required to return to accruing status	6 months
Restructured loans | Non acquired non-accrual loans
Loans and Allowance for Loan Losses
Nonaccrual loans	$ 830	$ 782	$ 648

Other Real Estate Owned (Detail

Other Real Estate Owned (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)property	Mar. 31, 2018USD ($)property
OREO
Balance at the beginning of the period	$ 11,410	$ 11,203
Additions	1,004	2,895
Write-downs	(98)	(777)
Sold	(1,019)	(2,458)
Balance at the end of the period	$ 11,297	$ 11,073
Number of properties held | property	74	77
Residential real estate consumer mortgage loans in foreclosure, carrying value	$ 4,800
Park Sterling Corporation
OREO
Acquired		$ 210
Residential real estate
OREO
Other Real Estate In Foreclosure	$ 1,200

Leases (Details)

Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Lessee, Lease, Description [Line Items]
Right to use asset	$ 82,787
Lease liabilities	$ 83,043
Existence of option to extend	true
Maximum
Lessee, Lease, Description [Line Items]
Renewal term	24 years

Leases - Lease cost and other i

Leases - Lease cost and other information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Lease Expense Components:
Operating lease expense	$ 2,146
Short-term lease expense	144
Variable lease expense	69
Total lease expense	2,359
Supplemental Cash Flow Information Related to Leases:
Cash paid for amounts included in the measurement of lease liabilities - operating leases	1,890
Initial ROU assets recorded in exchange for new lease liabilities at January 1, 2019 - operating leases	82,160
ROU assets obtained in exchange for new lease liabilities during first quarter 2019- operating leases	$ 1,956
Weighted - average remaining lease term (years) - Operating leases	14 years 3 months 29 days
Weighted - average discount rate - Operating leases	4.00%
Supplemental Balance Sheet Information Related to Leases
Operating lease ROU assets	$ 82,787
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, Plant and Equipment, Net
Operating lease liabilities	$ 83,043
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities

Leases - Maturities Analysis (D

Leases - Maturities Analysis (Details) $ in Thousands	Mar. 31, 2019USD ($)
Maturity Analysis of Lease Liabilities:
2019 (excluding the three months ended March 31, 2019)	$ 5,820
2020	7,866
2021	7,939
2022	7,937
2023	7,890
Thereafter	73,186
Total	110,638
Less: Imputed Interest	(27,595)
Lease liabilities	$ 83,043

Leases - Leases not yet commenc

Leases - Leases not yet commenced (Details) $ in Millions	Mar. 31, 2019USD ($)
Leases
Additional operating leases that not yet commenced	$ 7.9
Additional operating leases that not yet commenced term (in years)	15 years

Deposits - Total deposits (Deta

Deposits - Total deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Deposits
Certificates of deposit	$ 1,756,637	$ 1,775,095	$ 1,765,576
Interest-bearing demand deposits	5,562,111	5,407,175	5,308,154
Non-interest bearing demand deposits	3,219,864	3,061,769	3,120,818
Savings deposits	1,374,557	1,399,815	1,464,074
Other time deposits	5,802	3,079	4,476
Total deposits	$ 11,918,971	$ 11,646,933	$ 11,663,098

Deposits - Certificates of depo

Deposits - Certificates of deposits and Scheduled maturities of time deposits (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Deposits
Aggregate amounts of certificates of deposits in denominations of $250,000 or more	$ 325.1	$ 320	$ 340.9
Traditional, out-of-market brokered deposits	$ 7.6	$ 7.6	$ 35

Retirement Plans - Non-contribu

Retirement Plans - Non-contributory defined benefit pension plan (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	$ 289	$ 270
Service cost	30	19
Expected return on plan assets	(590)	(582)
Recognized net actuarial loss	121	194
Net periodic pension expense	$ (150)	$ (99)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible List]	Labor and Related Expense	Labor and Related Expense
Non-contributory defined benefit pension plan | Employees hired on or before December 31, 2005
Retirement Plans
Requisite age of employees for receiving retirement benefits under the plan	21 years
Non-contributory defined benefit pension plan | Employee hired on or after January 1, 2006
Retirement Plans
Requisite age of employees for receiving retirement benefits under the new benefit formula	45 years
Requisite age of employees for receiving retirement benefits under the new benefit formula	5 years

Retirement Plans - Rate and sta

Retirement Plans - Rate and standard deviation assumptions (Details) - Non-contributory defined benefit pension plan	Mar. 31, 2019
Cash equivalents
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Actual asset allocation (as a percent)	2.00%
Fixed income
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Actual asset allocation (as a percent)	98.00%

Retirement Plans - Safe Harbor

Retirement Plans - Safe Harbor plan (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Employees' savings plan
Matching contribution by the company (as a percent)			100.00%
Discretionary matching contribution	0.75		2
Expenses recognized under 401(K) plan	$ 1.2	$ 2.4
Minimum
Employees' savings plan
Age of employees to be eligible to participate in the defined contribution plan	21 years
Percentage of annual base compensation that participants may elect to contribute	1.00%
Maximum
Employees' savings plan
Percentage of annual base compensation that participants may elect to contribute	50.00%
Percentage of employees salary for which the company contributes a matching contribution			4.00%

Earnings Per Share - Computatio

Earnings Per Share - Computation of basic and diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Basic earnings per common share:
Net income	$ 44,367	$ 42,326
Weighted-average basic common shares	35,445	36,646
Basic earnings per common share (in dollars per share)	$ 1.25	$ 1.15
Diluted earnings per share:
Net income	$ 44,367	$ 42,326
Weighted-average basic common shares	35,445	36,646
Effect of dilutive securities (in shares)	174	253
Weighted-average dilutive shares	35,619	36,899
Diluted earnings per common share (in dollars per share)	$ 1.25	$ 1.15

Earnings Per Share - Calculatio

Earnings Per Share - Calculation of diluted EPS under Treasury method (Details) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share
Number of shares	87,917	61,272
Range of exercise prices, low end of range (in dollars per share)	$ 63.54	$ 91.05
Range of exercise prices, high end of range (in dollars per share)	$ 91.35	$ 91.35

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Options (Details) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	86 Months Ended
	Mar. 31, 2019USD ($)$ / sharesshares	Mar. 31, 2019USD ($)$ / sharesshares	Mar. 31, 2019USD ($)$ / sharesshares
Aggregate Intrinsic Value
Outstanding at the end of the period | $	$ 2,461	$ 2,461	$ 2,461
Exercisable at the end of the period | $	$ 2,432	$ 2,432	$ 2,432
Stock Options
Number of shares
Outstanding at the beginning of the period (in shares)		213,866
Exercised (in shares)		(12,722)
Outstanding at the end of the period (in shares)	201,144	201,144	201,144
Exercisable at the end of the period (in shares)	155,472	155,472	155,472
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share) | $ / shares		$ 61.28
Exercised (in dollars per share) | $ / shares		31.62
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 63.16	63.16	$ 63.16
Exercisable at the end of the period (in dollars per share) | $ / shares	$ 56.07	56.07	$ 56.07
Weighted-average fair value of options granted during the year (in dollars per share) | $ / shares		$ 0
Weighted-Average Remaining Contractual Life
Outstanding at the end of the period		5 years 7 months 21 days
Exercisable at the end of the period		4 months 27 days
2012 plan
Share-Based Compensation
Options granted (in shares)	0
2019 plan
Share-Based Compensation
Number of shares registered	1,000,000	1,000,000	1,000,000
2004 plan
Number of shares
Granted (in shares)			0
Plan 2004 And 2012 | Incentive stock options
Share-Based Compensation
Vesting percentage		25.00%
Expiration period		10 years
Plan 2004 And 2012 | Incentive stock options | Maximum
Share-Based Compensation
Vesting period		4 years

Share-Based Compensation - Weig

Share-Based Compensation - Weighted average assumptions used in valuing options (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Stock Options
Weighted-average assumptions
Dividend yield (as a percent)		1.46%
Expected life		8 years 6 months
Expected volatility (as a percent)		28.00%
Risk-free interest rate (as a percent)		2.54%
Additional disclosures
Total unrecognized compensation cost related to non vested stock option grants	$ 1,200,000
Weighted-average period over which unrecognized compensation cost is expected to be recognized	1 year 6 months 4 days
Total fair value of shares vested during the period	$ 799,000
Restricted Stock
Additional disclosures
Weighted-average period over which unrecognized compensation cost is expected to be recognized	1 year 6 months
Restricted Stock Activity and RSUs
Nonvested at the beginning of the period (in shares)	104,419
Granted (in shares)	1,148
Vested (in shares)	(7,040)
Forfeited (in shares)	(1,118)
Nonvested at the end of the period (in shares)	97,409
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share)	$ 62.45
Granted (in dollars per share)	59.95
Vested (in dollars per share)	86.82
Forfeited (in dollars per share)	77.88
Nonvested at the end of the period (in dollars per share)	$ 60.48
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted	$ 1,800,000
Total fair value of shares vested during the period	$ 732,000
Restricted Stock | Employees | Minimum
Additional disclosures
Vesting period	4 years
Restricted Stock | Non-employee directors | Maximum
Additional disclosures
Vesting period	12 months
Restricted Stock Units
Additional disclosures
Weighted-average period over which unrecognized compensation cost is expected to be recognized	2 years 2 months 1 day
Restricted Stock Activity and RSUs
Nonvested at the beginning of the period (in shares)	200,540
Granted (in shares)	128,386
Forfeited (in shares)	(227)
Nonvested at the end of the period (in shares)	328,699
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share)	$ 85.15
Granted (in dollars per share)	66.80
Forfeited (in dollars per share)	89.43
Nonvested at the end of the period (in dollars per share)	$ 77.98
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted	$ 13,500,000
Total fair value of shares vested during the period	$ 2,900,000
Target RSU award level (as a percent)	80.60%
Employee Stock Purchase Plan
Number Of Stock Issued Pursuant To Restricted Stock Units	44,599
Performance based restricted stock units
Additional disclosures
Performance period	3 years
Other Performance based restricted stock units
Additional disclosures
Performance period	1 year
Timed based restricted stock units
Additional disclosures
Performance period	4 years

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Details) $ in Billions	Mar. 31, 2019USD ($)
Commitments and Contingent Liabilities
Commitments to extend credit and standby letters of credit	$ 2.8

Fair Value - Assets and liabili

Fair Value - Assets and liabilities measured at fair value on a recurring basis (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Assets
Derivative financial instruments	$ 6,700
Securities available for sale	1,466,249	$ 1,640,837	$ 1,517,067
Liabilities
Derivative financial instruments	7,300
Government-sponsored entities debt
Assets
Securities available for sale	65,704	89,746	48,251
State and municipal obligations
Assets
Securities available for sale	193,418	225,686	200,768
Significant Unobservable Inputs (Level 3)
Assets
Mortgage servicing rights	32,415	34,196	34,727
Changes in fair value of assets
Changes in hierarchy classifications of Level 3 liabilities	0
Recurring basis
Assets
Derivative financial instruments	8,727	7,420	5,090
Loans held for sale	33,297	42,690	22,925
Securities available for sale	1,466,249	1,640,837	1,517,067
Mortgage servicing rights	32,415	34,196	34,727
Fair value of Assets, Total	1,540,688	1,725,143	1,579,809
Liabilities
Derivative financial instruments	10,330	6,094	4,421
Recurring basis | Government-sponsored entities debt
Assets
Securities available for sale	65,704	89,746	48,251
Recurring basis | State and municipal obligations
Assets
Securities available for sale	193,418	225,686	200,768
Recurring basis | Mortgage-backed securities
Assets
Securities available for sale	1,207,127	1,325,405	1,268,048
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets
Derivative financial instruments	8,727	7,420	5,090
Loans held for sale	33,297	42,690	22,925
Securities available for sale	1,466,249	1,640,837	1,517,067
Fair value of Assets, Total	1,508,273	1,690,947	1,545,082
Liabilities
Derivative financial instruments	10,330	6,094	4,421
Recurring basis | Significant Other Observable Inputs (Level 2) | Government-sponsored entities debt
Assets
Securities available for sale	65,704	89,746	48,251
Recurring basis | Significant Other Observable Inputs (Level 2) | State and municipal obligations
Assets
Securities available for sale	193,418	225,686	200,768
Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Assets
Securities available for sale	1,207,127	1,325,405	1,268,048
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets
Mortgage servicing rights	32,415	34,196	34,727
Fair value of Assets, Total	32,415	34,196	$ 34,727
Changes in fair value of assets
Fair value of assets at the beginning of the period	34,727	31,119
Servicing assets that resulted from transfers of financial assets	931	1,490
Changes in fair value assets due to valuation inputs or assumptions	(2,357)	2,516
Changes in fair value due to decay	886	929
Fair value of assets at the end of the period	32,415	34,196
Unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities	$ 0	$ 0

Fair Value - Assets and liabi_2

Fair Value - Assets and liabilities measured at fair value on a nonrecurring basis (Details) - Nonrecurring basis $ in Thousands	Mar. 31, 2019USD ($)item	Dec. 31, 2018USD ($)item	Mar. 31, 2018USD ($)item
OREO | Fair Value
Fair Value
Other Real Estate	$ 11,297	$ 11,410	$ 11,073
Non-acquired impaired loans | Fair Value
Fair Value
Other Real Estate	$ 1,839	$ 13,164	$ 2,118
Significant Unobservable Inputs (Level 3) | Impaired loans
Quantitative Information about Level 3 Fair Value Measurements
Long-term Debt, Valuation Technique [Extensible List]	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember
Long-term Debt, Measurement Input [Extensible List]	us-gaap:MeasurementInputDiscountRateMember	us-gaap:MeasurementInputDiscountRateMember	us-gaap:MeasurementInputDiscountRateMember
Significant Unobservable Inputs (Level 3) | Impaired loans | Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Discount rate (as a percent) | item	0.03	0.03	0.03
Significant Unobservable Inputs (Level 3) | OREO
Fair Value
Other Real Estate	$ 11,297	$ 11,410	$ 11,073
Quantitative Information about Level 3 Fair Value Measurements
Long-term Debt, Valuation Technique [Extensible List]	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember
Long-term Debt, Measurement Input [Extensible List]	us-gaap:MeasurementInputCostToSellMember	us-gaap:MeasurementInputCostToSellMember	us-gaap:MeasurementInputCostToSellMember
Significant Unobservable Inputs (Level 3) | OREO | Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Discount rate (as a percent) | item	0.24	0.23	0.28
Significant Unobservable Inputs (Level 3) | Non-acquired impaired loans
Fair Value
Other Real Estate	$ 1,839	$ 13,164	$ 2,118

Fair Value - Estimated fair val

Fair Value - Estimated fair value and related carrying amount, of the Company’s financial instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Financial assets:
Loans held for sale	$ 33,297	$ 42,690	$ 22,925
Financial liabilities:
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	276,891	357,574	270,649
Increase (Decrease) in Loans Held-for-sale	127,840	10,461
Other borrowings	616,250	215,589	266,084
Carrying Amount
Financial assets:
Cash and cash equivalents	949,591	644,504	408,983
Investment securities	1,506,873	1,665,590	1,542,671
Loans held for sale	22,925	42,690	22,925
Loans, net of allowance for loan losses (1)	11,089,600	10,589,521	10,962,037
Accrued interest receivable	36,965	31,175	35,997
Mortgage servicing rights	32,415	34,196	34,727
Interest rate swap - non-designated hedge	6,672	5,755	3,824
Interest rate swap - cash flow hedge	217
Other derivative financial instruments (mortgage banking related)	1,838	1,665	1,267
Financial liabilities:
Deposits	11,918,971	11,663,098	11,646,933
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	276,891	357,574	270,649
Other borrowings	616,250	215,589	266,084
Accrued interest payable	5,688	3,563	4,719
Interest rate swap - non-designated hedge	7,403	5,932	4,373
Interest rate swap - cash flow hedge	2,927	162	48
Fair Value
Financial assets:
Cash and cash equivalents	949,591	644,504	408,983
Investment securities	1,506,873	1,665,600	1,542,671
Loans held for sale	22,925	42,690	22,925
Loans, net of allowance for loan losses (1)	11,005,731	10,419,134	10,613,571
Accrued interest receivable	36,965	31,175	35,997
Mortgage servicing rights	32,415	34,196	34,727
Interest rate swap - non-designated hedge	6,672	5,755	3,824
Interest rate swap - cash flow hedge	217
Other derivative financial instruments (mortgage banking related)	1,838	1,665	1,267
Financial liabilities:
Deposits	10,956,761	10,780,965	10,561,394
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	276,891	357,574	270,649
Other borrowings	619,140	219,037	269,134
Accrued interest payable	5,688	3,563	4,719
Interest rate swap - non-designated hedge	7,403	5,932	4,373
Interest rate swap - cash flow hedge	2,927	162	48
Commitments to extend credit | Fair Value
Financial liabilities:
Commitments to extend credit	(21,189)	(48,841)	(88,424)
Quoted Prices In Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	949,591	644,504	408,983
Investment securities	40,624	23,479	25,604
Accrued interest receivable	524
Significant Other Observable Inputs (Level 2)
Financial assets:
Investment securities	1,466,249	1,642,121	1,517,067
Loans held for sale	22,925	42,690	22,925
Accrued interest receivable	5,891	6,661	6,908
Interest rate swap - non-designated hedge	6,672	5,755	3,824
Interest rate swap - cash flow hedge	217
Other derivative financial instruments (mortgage banking related)	1,838	1,665	1,267
Financial liabilities:
Deposits	10,956,761	10,780,965	10,561,394
Federal Funds Purchased and Securities Sold under Agreements to Repurchase.	276,891	357,574	270,649
Other borrowings	619,140	219,037	269,134
Accrued interest payable	5,688	3,563	4,719
Interest rate swap - non-designated hedge	7,403	5,932	4,373
Interest rate swap - cash flow hedge	2,927	162	48
Significant Other Observable Inputs (Level 2) | Commitments to extend credit
Financial liabilities:
Commitments to extend credit	(21,189)	(48,841)	(88,424)
Significant Unobservable Inputs (Level 3)
Financial assets:
Loans, net of allowance for loan losses (1)	11,005,731	10,419,134	10,613,571
Accrued interest receivable	30,550	24,514	29,089
Mortgage servicing rights	$ 32,415	$ 34,196	$ 34,727

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Changes in components of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	$ (24,881)
Other comprehensive gain (loss), net of tax	11,507	$ (16,976)
Balance at the end of the period	(13,374)	(30,350)
Benefit Plans
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(6,450)	(5,998)
Amounts reclassified from accumulated other comprehensive income (loss)	95	151
Other comprehensive gain (loss), net of tax	95	151
AOCI reclassification to retained earnings from adoption of ASU 2018-02		(1,760)
Balance at the end of the period	(6,355)	(7,607)
Unrealized Gains and Losses on Securities Available for Sale
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(18,394)	(4,278)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	13,066	(17,192)
Amounts reclassified from accumulated other comprehensive income (loss)	422
Other comprehensive gain (loss), net of tax	13,488	(17,192)
AOCI reclassification to retained earnings from adoption of ASU 2018-02		(1,147)
Balance at the end of the period	(4,906)	(22,617)
Gains and Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(37)	(151)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(2,068)	28
Amounts reclassified from accumulated other comprehensive income (loss)	(8)	37
Other comprehensive gain (loss), net of tax	(2,076)	65
AOCI reclassification to retained earnings from adoption of ASU 2018-02		(40)
Balance at the end of the period	(2,113)	(126)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	(24,881)	(10,427)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	10,998	(17,164)
Amounts reclassified from accumulated other comprehensive income (loss)	509	188
Other comprehensive gain (loss), net of tax	11,507	(16,976)
AOCI reclassification to retained earnings from adoption of ASU 2018-02		(2,947)
Balance at the end of the period	$ (13,374)	$ (30,350)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Reclassifications out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Reclassifications out of accumulated other comprehensive income, net of tax
Interest expense	$ (20,123)	$ (9,075)
Provision for income taxes	(11,231)	(11,285)
Net income	44,367	42,326
Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Net income	509	188
Gains and Losses on Cash Flow Hedges | Amount Reclassified from Accumulated Other Comprehensive Loss | Interest rate contracts
Reclassifications out of accumulated other comprehensive income, net of tax
Interest expense	(10)	47
Provision for income taxes	2	(10)
Net income	(8)	37
Unrealized Gains and Losses on Securities Available for Sale | Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Securities (gains) losses, net	541
Provision for income taxes	(119)
Net income	422
Benefit Plans | Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Salaries and employee benefits	121	194
Provision for income taxes	(26)	(43)
Net income	$ 95	$ 151

Derivative Financial Instrume_3

Derivative Financial Instruments (Details) - USD ($)	Mar. 30, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2009
Derivative Financial Instruments
Notional Amount		$ 1,429,948,000	$ 742,778,000
Estimated Fair Value Gain		8,727,000	7,420,000
Estimated Fair Value Loss		$ 10,330,000	6,094,000
Variable rate basis, variable rate receivable on notional amount		three-month LIBOR
After-tax unrealized gain on cash flow hedge in other comprehensive income		$ 2,100,000	65,000
Ineffectiveness in the cash flow hedge			0
Gain or loss recorded		0	0
Interest Rate Derivative Assets, at Fair Value		6,700,000
Interest Rate Derivative Liabilities, at Fair Value		7,300,000
Interest Rate Derivatives, at Fair Value, Net		622,000	156,000
Estimated gain (loss) on fair value of open contracts related to mortgage servicing rights	$ (390,000)	1,100,000
Junior Subordinated Debt
Derivative Financial Instruments
Collateral provided		300,000	300,000
FHLB Advances
Derivative Financial Instruments
Collateral provided		8,000,000
Other Assets.
Derivative Financial Instruments
Cash flow hedge assets		217,000
Other Liabilities.
Derivative Financial Instruments
Cash flow hedge liability		2,900,000	162,000
Mortgage loan pipeline
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation		95,731,000	92,647,000	$ 50,442,000
Expected closures
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation		71,798,000	69,485,000	37,832,000
Cash flow hedge | FHLB Advances - One
Derivative Financial Instruments
Outstanding advances		350,000,000
Cash flow hedge | FHLB Advances - Two
Derivative Financial Instruments
Outstanding advances		150,000,000
Interest rate contracts
Derivative Financial Instruments
Notional Amount		710,000,000
Mortgage servicing rights hedging | Non-designated hedges
Derivative Financial Instruments
Notional Amount		129,000,000	69,000,000
Mortgage servicing rights hedging | Non-designated hedges | Other Assets.
Derivative Financial Instruments
Notional Amount		129,000,000	69,000,000
Estimated Fair Value Gain		1,100,000	390,000
Mortgage loan pipeline commitments
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation		1,364,000	1,190,000	705,000
Forward commitments
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation		80,059,000	98,860,000	54,533,000
Fair value of forward commitments		626,000	(85,000)	$ 621,000
Forward commitments | Non-designated hedges | Other Assets.
Derivative Financial Instruments
Notional Amount		80,059,000	98,860,000
Estimated Fair Value Gain		738,000	1,275,000
Interest rate swap | LIBOR
Derivative Financial Instruments
Notional Amount		8,000,000
Interest rate swap | Cash flow hedge
Derivative Financial Instruments
Notional Amount					$ 8,000,000
Interest rate swap | Cash flow hedge | FHLB Advances - One
Derivative Financial Instruments
Notional Amount		$ 350,000,000
Fixed rate payable on notional amount (as a percent)		2.44%
Interest rate swap | Cash flow hedge | FHLB Advances - Two
Derivative Financial Instruments
Notional Amount		$ 150,000,000
Fixed rate payable on notional amount (as a percent)		2.21%
Interest rate swap | Cash flow hedge | Other Liabilities. | Counterparty
Derivative Financial Instruments
Notional Amount		$ 8,000,000	8,000,000
Estimated Fair Value Loss		25,000	162,000
Interest rate swap | Cash flow hedge | Other Assets and Other Liabilities | FHLB Advances | Counterparty
Derivative Financial Instruments
Notional Amount		500,000,000
Estimated Fair Value Gain		217,000
Estimated Fair Value Loss		$ 2,902,000
Interest rate swap | Cash flow hedge | LIBOR
Derivative Financial Instruments
Fixed rate payable on notional amount (as a percent)		4.06%
Interest rate swap | Cash flow hedge | LIBOR | FHLB Advances - One
Derivative Financial Instruments
Variable rate (as a percent)		2.63%
Interest rate swap | Cash flow hedge | LIBOR | FHLB Advances - Two
Derivative Financial Instruments
Variable rate (as a percent)		2.60%
Interest rate swap | Fair Value Hedging | Other Assets. | Counterparty
Derivative Financial Instruments
Notional Amount		$ 2,799,000	2,824,000
Estimated Fair Value Loss		108,000	21,000
Interest rate swap | Non-designated hedges | Other Assets and Other Liabilities | Borrower
Derivative Financial Instruments
Notional Amount		355,045,000	282,047,000
Estimated Fair Value Gain		6,112,000	146,000
Estimated Fair Value Loss		2,137,000	5,908,000
Interest rate swap | Non-designated hedges | Other Assets and Other Liabilities | Counterparty
Derivative Financial Instruments
Notional Amount		355,045,000	282,047,000
Estimated Fair Value Gain		560,000	5,609,000
Estimated Fair Value Loss		$ 5,158,000	$ 3,000

Capital Ratios (Details)

Capital Ratios (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Mar. 31, 2018
Capital ratios
Capital conversion buffer common equity Tier 1 of risk-weighted assets (as a percent)		2.50%
Common equity Tier 1 to risk-weighted assets
Actual, Capital Amount	$ 1,338,085		$ 1,335,826	$ 1,295,729
Actual, Ratio (as a percent)	11.86%		12.05%	11.85%
Minimum capital required, Ratio (as a percent)	4.50%
Required to be considered well capitalized, Capital Amount	$ 733,481		$ 720,844	$ 710,909
Required to be considered well capitalized, Ratio (as a percent)	6.50%		6.50%	6.50%
Tier I capital to risk-weighted assets
Actual, Capital Amount	$ 1,449,854		$ 1,447,428	$ 1,406,832
Actual, Ratio (as a percent)	12.85%		13.05%	12.86%
Minimum capital required, Ratio (as a percent)	6.00%		4.00%
Required to be considered well capitalized, Capital Amount	$ 902,746		$ 887,192	$ 874,964
Required to be considered well capitalized, Ratio (as a percent)	8.00%		8.00%	8.00%
Total capital to risk-weighted assets
Actual, Capital Amount	$ 1,506,710		$ 1,503,561	$ 1,456,453
Actual, Ratio (as a percent)	13.35%		13.56%	13.32%
Minimum capital required, Ratio (as a percent)	8.00%
Required to be considered well capitalized, Capital Amount	$ 1,128,433		$ 1,108,990	$ 1,093,706
Required to be considered well capitalized, Ratio (as a percent)	10.00%		10.00%	10.00%
Tier I capital to average assets (leverage ratio)
Actual, Capital Amount	$ 1,449,854		$ 1,447,428	$ 1,406,832
Actual, Ratio (as a percent)	10.52%		10.65%	10.50%
Minimum capital required, Ratio (as a percent)	4.00%
Required to be considered well capitalized, Capital Amount	$ 689,207		$ 679,383	$ 669,654
Required to be considered well capitalized, Ratio (as a percent)	5.00%		5.00%	5.00%
Phase-In Schedule
Common equity Tier 1 to risk-weighted assets
Minimum capital required, Capital Amount	$ 789,903		$ 706,981	$ 697,237
Minimum capital required, Ratio (as a percent)	7.00%		6.38%	6.38%
Tier I capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 959,168		$ 873,330	$ 861,293
Minimum capital required, Ratio (as a percent)	8.50%		7.88%	7.88%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 1,184,855		$ 1,095,128	$ 1,080,034
Minimum capital required, Ratio (as a percent)	10.50%		9.88%	9.88%
Tier I capital to average assets (leverage ratio)
Minimum capital required, Capital Amount	$ 551,366		$ 543,506	$ 535,724
Minimum capital required, Ratio (as a percent)	4.00%		4.00%	4.00%
Fully Phased-In
Common equity Tier 1 to risk-weighted assets
Minimum capital required, Capital Amount	$ 789,903		$ 776,293	$ 765,594
Minimum capital required, Ratio (as a percent)	7.00%		7.00%	7.00%
Tier I capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 959,168		$ 942,642	$ 929,650
Minimum capital required, Ratio (as a percent)	8.50%		8.50%	8.50%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 1,184,855		$ 1,164,440	$ 1,148,391
Minimum capital required, Ratio (as a percent)	10.50%		10.50%	10.50%
Tier I capital to average assets (leverage ratio)
Minimum capital required, Capital Amount	$ 551,366		$ 543,506	$ 535,724
Minimum capital required, Ratio (as a percent)	4.00%		4.00%	4.00%
South State Bank (the Bank)
Common equity Tier 1 to risk-weighted assets
Actual, Capital Amount	$ 1,429,219		$ 1,427,764	$ 1,385,289
Actual, Ratio (as a percent)	12.67%		12.87%	12.67%
Required to be considered well capitalized, Capital Amount	$ 733,448		$ 720,902	$ 710,925
Required to be considered well capitalized, Ratio (as a percent)	6.50%		6.50%	6.50%
Tier I capital to risk-weighted assets
Actual, Capital Amount	$ 1,429,219		$ 1,427,764	$ 1,385,289
Actual, Ratio (as a percent)	12.67%		12.87%	12.67%
Required to be considered well capitalized, Capital Amount	$ 902,706		$ 887,264	$ 874,985
Required to be considered well capitalized, Ratio (as a percent)	8.00%		8.00%	8.00%
Total capital to risk-weighted assets
Actual, Capital Amount	$ 1,486,075		$ 1,483,897	$ 1,434,911
Actual, Ratio (as a percent)	13.17%		13.38%	13.12%
Required to be considered well capitalized, Capital Amount	$ 1,128,382		$ 1,109,080	$ 1,093,731
Required to be considered well capitalized, Ratio (as a percent)	10.00%		10.00%	10.00%
Tier I capital to average assets (leverage ratio)
Actual, Capital Amount	$ 1,429,219		$ 1,427,764	$ 1,385,289
Actual, Ratio (as a percent)	10.37%		10.51%	10.35%
Required to be considered well capitalized, Capital Amount	$ 689,022		$ 679,234	$ 669,402
Required to be considered well capitalized, Ratio (as a percent)	5.00%		5.00%	5.00%
South State Bank (the Bank) | Phase-In Schedule
Common equity Tier 1 to risk-weighted assets
Minimum capital required, Capital Amount	$ 789,867		$ 707,039	$ 697,253
Minimum capital required, Ratio (as a percent)	7.00%		6.38%	6.38%
Tier I capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 959,125		$ 873,401	$ 861,313
Minimum capital required, Ratio (as a percent)	8.50%		7.88%	7.88%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 1,184,801		$ 1,095,217	$ 1,080,059
Minimum capital required, Ratio (as a percent)	10.50%		9.88%	9.88%
Tier I capital to average assets (leverage ratio)
Minimum capital required, Capital Amount	$ 551,218		$ 543,387	$ 535,522
Minimum capital required, Ratio (as a percent)	4.00%		4.00%	4.00%
South State Bank (the Bank) | Fully Phased-In
Common equity Tier 1 to risk-weighted assets
Minimum capital required, Capital Amount	$ 789,867		$ 776,356	$ 765,612
Minimum capital required, Ratio (as a percent)	7.00%		7.00%	7.00%
Tier I capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 959,125		$ 942,718	$ 929,671
Minimum capital required, Ratio (as a percent)	8.50%		8.50%	8.50%
Total capital to risk-weighted assets
Minimum capital required, Capital Amount	$ 1,184,801		$ 1,164,534	$ 1,148,417
Minimum capital required, Ratio (as a percent)	10.50%		10.50%	10.50%
Tier I capital to average assets (leverage ratio)
Minimum capital required, Capital Amount	$ 551,218		$ 543,387	$ 535,522
Minimum capital required, Ratio (as a percent)	4.00%		4.00%	4.00%

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Goodwill and Other Intangible Assets
Goodwill	$ 1,002,900	$ 1,002,900	$ 999,592

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Summary of gross carrying amounts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Other intangible assets
Gross carrying amount	$ 119,501	$ 118,415	$ 121,736
Accumulated amortization	(59,882)	(48,039)	(58,836)
Net carrying amount	59,619	70,376	62,900
Amortization expense	3,281	3,413
Estimated amortization expense for other intangibles for each of the next five quarters
June 30, 2019	3,268
September 30, 2019	3,268
December 31, 2019	3,267
March 31, 2020	3,007
June 30, 2020	2,995
Thereafter	43,814
Net carrying amount	$ 59,619	$ 70,376	$ 62,900
Minimum
Other intangible assets
Estimated useful lives	2 years
Maximum
Other intangible assets
Estimated useful lives	15 years

Loan Servicing, Mortgage Orig_3

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
MSRs
Changes in the fair value of MSRs and its offsetting hedge.
Increase (decrease) in fair value of MSRs	$ (2,357)	$ 2,516
Decay of MSRs	(886)	(929)
Gains (loss) related to derivatives	1,280	(1,554)
Net effect on statements of income	$ (1,963)	$ 33
Characteristics and sensitivity analysis of the MSR
Composition of residential loans serviced for others				100.00%	100.00%	100.00%
Weighted average life (in years)	7 years 29 days	8 years 5 months 12 days	7 years 10 months 17 days
Constant Prepayment rate (CPR) (as a percent)	8.80%	6.30%	7.30%
Weighted average discount rate (as a percent)	9.40%	9.60%	9.40%
Effect on fair value due to change in interest rates:
25 basis point increase				$ 2,044	$ 1,504	$ 1,025
50 basis point increase				3,747	2,740	1,791
25 basis point decrease				(2,438)	(1,981)	(1,439)
50 basis point decrease				(5,171)	$ (4,421)	(3,189)
Custodial escrow balances maintained in connection with the loan servicing				$ 22,100		$ 20,900
Fixed-rate mortgage loans
Characteristics and sensitivity analysis of the MSR
Composition of residential loans serviced for others				99.80%	99.80%	99.70%
Adjustable-rate mortgage loans
Characteristics and sensitivity analysis of the MSR
Composition of residential loans serviced for others				0.20%	0.20%	0.30%
First Financial Holdings, Inc. ("First Financial")
Loans held for sale, loan servicing and mortgage origination
Residential mortgages serviced for others				$ 3,100,000	$ 3,100,000	$ 3,000,000
Contractually specified servicing fees earned	$ 1,900	$ 1,900
First Financial Holdings, Inc. ("First Financial") | MSRs
Loans held for sale, loan servicing and mortgage origination
Mortgage servicing rights	34,700	34,200	$ 34,700	$ 32,400	$ 34,700	$ 34,200
Analysis of the activity in the MSRs
Balance at beginning of the period	34,700
Balance at end of period	$ 32,400	$ 34,200	$ 34,700

Loan Servicing, Mortgage Orig_4

Loan Servicing, Mortgage Origination, and Loans Held for Sale - Mandatory cash forwards (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loan sales	$ 115.3	$ 154.9
Loan securitizations and loan sales	$ 89.1	$ 118.4
Percentage of loan securitizations and loan sales	77.30%	76.50%
Residential mortgage loans to be sold in secondary market
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Residential mortgage loans held for sale	$ 33.3	$ 42.7	$ 22.9
Residential mortgage loans awaiting sale in secondary market | Minimum
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loans held for sale, settlement period	15 days
Residential mortgage loans awaiting sale in secondary market | Maximum
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loans held for sale, settlement period	45 days

Investments in Qualified Affo_2

Investments in Qualified Affordable Housing Projects (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Investment In Qualified Affordable Housing Projects.
Tax credits and other tax benefits	$ 1.5	$ 1.2
Amortization	1.5	1
Carrying value	54.2	38.7
Original investment value	69.6	69.6
Funding obligation	24	$ 17.9
Amount repaid	$ 0

Repurchase Agreements (Details)

Repurchase Agreements (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Secured Debt, Repurchase Agreements
Carrying amount of securities sold under repurchase agreements with customers	$ 218.8	$ 205.3	$ 269.5
Carrying amount of the securities pledged to collateralize repurchase agreements	$ 218.8	$ 205.3	$ 269.5