Business Combinations	6 Months Ended
Jun. 30, 2018
Business Combinations [Abstract]
Business Combinations	NOTE B - BUSINESS COMBINATIONS Palmetto Heritage Bancshares, Inc. On July 25, 2018, First Citizens Bank and Palmetto Heritage Bancshares, Inc. announced the signing of a definitive merger agreement. The agreement provides for the acquisition of Pawley's Island, SC-based Palmetto Heritage Bancshares. Under the terms of the agreement, cash consideration of $135.00 per share will be paid to the shareholders of Palmetto Heritage Bancshares for each share of Palmetto Heritage's common stock with total consideration paid of $30.3 million. The transaction is expected to close during the fourth quarter of 2018, subject to the receipt of regulatory approvals and the approval of Palmetto Heritage Bancshares’ shareholders. As of June 30, 2018, Palmetto Heritage Bancshares reported $167.9 million in consolidated assets, $137.8 million in loans and $126.4 million in deposits. Capital Commerce Bancorp, Inc. On June 27, 2018, FCB and Capital Commerce Bancorp, Inc. (Capital Commerce) entered into a definitive merger agreement. The agreement provides for the acquisition of Milwaukee, Wisconsin-based Capital Commerce by FCB. Under the terms of the agreement, cash consideration of $4.75 per share will be paid to the shareholders of Capital Commerce for each share of Capital Commerce's common stock totaling approximately $28.1 million. The transaction is expected to close no later than the fourth quarter of 2018, subject to the receipt of regulatory approvals and the approval of Capital Commerce's shareholders, and will be accounted for under the acquisition method of accounting. The merger will allow FCB to expand its presence and enhance banking efforts in the Milwaukee market. As of March 31, 2018, Capital Commerce reported $216.2 million in consolidated assets, $180.6 million in loans and $171.0 million in deposits. HomeBancorp, Inc. On May 1, 2018, FCB completed the merger of Tampa, Florida-based HomeBancorp, Inc. (HomeBancorp) and its subsidiary, HomeBanc, into FCB. Under the terms of the merger agreement, cash consideration of $15.03 was paid to the shareholders of HomeBancorp for each share of HomeBancorp's common stock and total consideration was $112.7 million. The merger allowed FCB to expand its footprint in Florida by entering into two new markets in Tampa and Orlando.

NOTE B - BUSINESS COMBINATIONS

Palmetto Heritage Bancshares, Inc.

On July 25, 2018, First Citizens Bank and Palmetto Heritage Bancshares, Inc. announced the signing of a definitive merger agreement. The agreement provides for the acquisition of Pawley's Island, SC-based Palmetto Heritage Bancshares. Under the terms of the agreement, cash consideration of $135.00 per share will be paid to the shareholders of Palmetto Heritage Bancshares for each share of Palmetto Heritage's common stock with total consideration paid of $30.3 million. The transaction is expected to close during the fourth quarter of 2018, subject to the receipt of regulatory approvals and the approval of Palmetto Heritage Bancshares’ shareholders. As of June 30, 2018, Palmetto Heritage Bancshares reported $167.9 million in consolidated assets, $137.8 million in loans and $126.4 million in deposits.

Capital Commerce Bancorp, Inc.

On June 27, 2018, FCB and Capital Commerce Bancorp, Inc. (Capital Commerce) entered into a definitive merger agreement. The agreement provides for the acquisition of Milwaukee, Wisconsin-based Capital Commerce by FCB. Under the terms of the agreement, cash consideration of $4.75 per share will be paid to the shareholders of Capital Commerce for each share of Capital Commerce's common stock totaling approximately $28.1 million. The transaction is expected to close no later than the fourth quarter of 2018, subject to the receipt of regulatory approvals and the approval of Capital Commerce's shareholders, and will be accounted for under the acquisition method of accounting. The merger will allow FCB to expand its presence and enhance banking efforts in the Milwaukee market. As of March 31, 2018, Capital Commerce reported $216.2 million in consolidated assets, $180.6 million in loans and $171.0 million in deposits.

HomeBancorp, Inc.

On May 1, 2018, FCB completed the merger of Tampa, Florida-based HomeBancorp, Inc. (HomeBancorp) and its subsidiary, HomeBanc, into FCB. Under the terms of the merger agreement, cash consideration of $15.03 was paid to the shareholders of HomeBancorp for each share of HomeBancorp's common stock and total consideration was $112.7 million. The merger allowed FCB to expand its footprint in Florida by entering into two new markets in Tampa and Orlando.