Nature of Operations and Basis of Presentation	3 Months Ended
Mar. 31, 2020
Accounting Policies [Abstract]
Nature of Operations and Basis of Presentation	NOTE 1: Nature of operations and basis of presentation The consolidated financial statements include the accounts of CenterState Bank Corporation (the “Parent Company,” “Company” or “CSFL”), and its wholly owned subsidiary bank, CenterState Bank, N.A. (“CenterState” or the “Bank”), and non-bank subsidiaries, R4ALL, Inc., and CSFL Insurance Corp. The Company operates as one of the largest community bank franchises headquartered in the state of Florida. The Bank provides traditional retail, commercial, mortgage, wealth management and SBA services throughout its Florida, Georgia and Alabama branch network and customer relationships in neighboring states. The Bank, headquartered in Winter Haven, Florida, also operates a correspondent banking and capital markets division, of which the majority of its bond salesmen, traders and operational personnel are primarily housed in facilities located in Birmingham, Alabama and Atlanta, Georgia. This division’s primary revenue generating activities are related to its capital markets division, which includes commissions earned on fixed income security sales, fees from hedging services, loan brokerage fees and consulting fees for services related to these activities; and its correspondent banking division, which includes spread income earned on correspondent bank deposits (i.e. federal funds purchased) and correspondent bank checking account deposits and fees from safe-keeping activities, bond accounting services for correspondents, asset/liability consulting related activities, international wires, and other clearing and corporate checking account services. The customer base includes small to medium size financial institutions primarily located in the Southeastern United States, although clients are located across the United States. The Bank also owns CBI Holding Company, LLC (“CBI”), which in turn owns Corporate Billing, LLC (“Corporate Billing”), a transaction-based finance company headquartered in Decatur, Alabama that provides factoring, invoicing, collection and accounts receivable management services to transportation companies and automotive parts and service providers nationwide. R4ALL, Inc. manages troubled loans purchased from the Bank to their eventual disposition. CSFL Insurance Corp. is a captive insurance subsidiary pursuant to Section 831(b) of the U.S. Tax Code. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial statements and with the instructions to Form 10-Q. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. These statements should be read in conjunction with the consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2019. In the Company’s opinion, all adjustments, consisting primarily of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods have been made. The results of operations of the three-month ended March 31, 2020 are not necessarily indicative of the results expected for the full year. Some items in the prior period financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior period net income or common stockholders’ equity.

Nature of Operations and Basis of Presentation

3 Months Ended

Mar. 31, 2020

Nature of Operations and Basis of Presentation

NOTE 1: Nature of operations and basis of presentation

The consolidated financial statements include the accounts of CenterState Bank Corporation (the “Parent Company,” “Company” or “CSFL”), and its wholly owned subsidiary bank, CenterState Bank, N.A. (“CenterState” or the “Bank”), and non-bank subsidiaries, R4ALL, Inc., and CSFL Insurance Corp. The Company operates as one of the largest community bank franchises headquartered in the state of Florida. The Bank provides traditional retail, commercial, mortgage, wealth management and SBA services throughout its Florida, Georgia and Alabama branch network and customer relationships in neighboring states.

The Bank, headquartered in Winter Haven, Florida, also operates a correspondent banking and capital markets division, of which the majority of its bond salesmen, traders and operational personnel are primarily housed in facilities located in Birmingham, Alabama and Atlanta, Georgia. This division’s primary revenue generating activities are related to its capital markets division, which includes commissions earned on fixed income security sales, fees from hedging services, loan brokerage fees and consulting fees for services related to these activities; and its correspondent banking division, which includes spread income earned on correspondent bank deposits (i.e. federal funds purchased) and correspondent bank checking account deposits and fees from safe-keeping activities, bond accounting services for correspondents, asset/liability consulting related activities, international wires, and other clearing and corporate checking account services. The customer base includes small to medium size financial institutions primarily located in the Southeastern United States, although clients are located across the United States. The Bank also owns CBI Holding Company, LLC (“CBI”), which in turn owns Corporate Billing, LLC (“Corporate Billing”), a transaction-based finance company headquartered in Decatur, Alabama that provides factoring, invoicing, collection and accounts receivable management services to transportation companies and automotive parts and service providers nationwide.

R4ALL, Inc. manages troubled loans purchased from the Bank to their eventual disposition. CSFL Insurance Corp. is a captive insurance subsidiary pursuant to Section 831(b) of the U.S. Tax Code.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial statements and with the instructions to Form 10-Q. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. These statements should be read in conjunction with the consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2019. In the Company’s opinion, all adjustments, consisting primarily of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods have been made. The results of operations of the three-month ended March 31, 2020 are not necessarily indicative of the results expected for the full year.

Some items in the prior period financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior period net income or common stockholders’ equity.