Subsequent Events	12 Months Ended
Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events (In Thousands) Merger with Metropolitan BancGroup, Inc. On January 17, 2017, the Company and Metropolitan BancGroup, Inc. (“Metropolitan”), the parent company of Metropolitan Bank, jointly announced the signing of a definitive merger agreement pursuant to which the Company will acquire Metropolitan in an all-stock merger in a transaction valued at approximately $190,200. Under the terms of the agreement, Metropolitan will be merged with and into Renasant, and Renasant will be the surviving corporation. Immediately after the merger of Metropolitan with and into Renasant, Metropolitan Bank will merge with and into Renasant Bank, with Renasant Bank continuing as the surviving bank corporation in the merger. According to the terms of the merger agreement, each Metropolitan common shareholder will have the right to receive 0.6066 shares of Renasant common stock for each share of Metropolitan common stock, and the merger is expected to qualify as a tax-free reorganization for Metropolitan shareholders. Metropolitan operates eight offices in Nashville and Memphis, Tennessee and the Jackson, MS MSA and as of December 31, 2016, had approximately $1,156,000 in total assets, which included approximately $917,600 in total loans, and approximately$887,600 in total deposits. The acquisition is expected to close in the third quarter of 2017 and is subject to regulatory approval, Metropolitan shareholder approval, and other customary conditions set forth in the merger agreement. Redemption of Junior Subordinated Debentures - Heritage Financial Statutory Trust I On February 22, 2017, the Company redeemed the Heritage Financial Statutory Trust I junior subordinated debentures. The debentures were redeemed for an aggregate amount of $10,520, which included the principal amount of $10,310 and a prepayment penalty of $210. Prior to the redemption, the Company obtained all required board and regulatory approval.

Subsequent Events

(In Thousands)

Merger with Metropolitan BancGroup, Inc.

On January 17, 2017, the Company and Metropolitan BancGroup, Inc. (“Metropolitan”), the parent company of Metropolitan Bank, jointly announced the signing of a definitive merger agreement pursuant to which the Company will acquire Metropolitan in an all-stock merger in a transaction valued at approximately $190,200. Under the terms of the agreement, Metropolitan will be merged with and into Renasant, and Renasant will be the surviving corporation. Immediately after the merger of Metropolitan with and into Renasant, Metropolitan Bank will merge with and into Renasant Bank, with Renasant Bank continuing as the surviving bank corporation in the merger.

According to the terms of the merger agreement, each Metropolitan common shareholder will have the right to receive 0.6066 shares of Renasant common stock for each share of Metropolitan common stock, and the merger is expected to qualify as a tax-free reorganization for Metropolitan shareholders.

Metropolitan operates eight offices in Nashville and Memphis, Tennessee and the Jackson, MS MSA and as of December 31, 2016, had approximately $1,156,000 in total assets, which included approximately $917,600 in total loans, and approximately$887,600 in total deposits.

The acquisition is expected to close in the third quarter of 2017 and is subject to regulatory approval, Metropolitan shareholder approval, and other customary conditions set forth in the merger agreement.

Redemption of Junior Subordinated Debentures - Heritage Financial Statutory Trust I

On February 22, 2017, the Company redeemed the Heritage Financial Statutory Trust I junior subordinated debentures. The debentures were redeemed for an aggregate amount of $10,520, which included the principal amount of $10,310 and a prepayment penalty of $210. Prior to the redemption, the Company obtained all required board and regulatory approval.