Restrictions on Cash, Securities, Bank Dividends, Loans or Advances	12 Months Ended
Dec. 31, 2017
Regulated Operations [Abstract]
Restrictions on Cash, Securities, Bank Dividends, Loans or Advances	Restrictions on Cash, Securities, Bank Dividends, Loans or Advances (In Thousands) Renasant Bank is required to maintain minimum average balances with the Federal Reserve. At December 31, 2017 and 2016, Renasant Bank’s reserve requirements with the Federal Reserve were $129,429 and $109,044, respectively, with which it was in full compliance. The Company’s balance of FHLB stock, which is carried at amortized cost, at December 31, 2017 and 2016, was $15,070 and $9,589, respectively. The required investment for the same time period was $7,181 and $7,611, respectively. The Company’s ability to pay dividends to its shareholders is substantially dependent on the ability of Renasant Bank to transfer funds to the Company in the form of dividends, loans and advances. Under Mississippi law, a Mississippi bank may not pay dividends unless its earned surplus is in excess of three times capital stock. A Mississippi bank with earned surplus in excess of three times capital stock may pay a dividend, subject to the approval of the Mississippi Department of Banking and Consumer Finance (the “DBCF”). In addition, the FDIC also has the authority to prohibit the Bank from engaging in business practices that the FDIC considers to be unsafe or unsound, which, depending on the financial condition of the Bank, could include the payment of dividends. Accordingly, the approval of the DBCF is required prior to Renasant Bank paying dividends to the Company, and under certain circumstances the approval of the FDIC may be required. At December 31, 2017, the Bank’s earned surplus exceeded the Bank’s capital stock by more than ten times. Federal Reserve regulations also limit the amount Renasant Bank may loan to the Company unless such loans are collateralized by specific obligations. At December 31, 2017, the maximum amount available for transfer from Renasant Bank to the Company in the form of loans was $105,075. As of December 31, 2017, no loans from the Bank to the Company were outstanding.

Restrictions on Cash, Securities, Bank Dividends, Loans or Advances

(In Thousands)

Renasant Bank is required to maintain minimum average balances with the Federal Reserve. At December 31, 2017 and 2016, Renasant Bank’s reserve requirements with the Federal Reserve were $129,429 and $109,044, respectively, with which it was in full compliance.

The Company’s balance of FHLB stock, which is carried at amortized cost, at December 31, 2017 and 2016, was $15,070 and $9,589, respectively. The required investment for the same time period was $7,181 and $7,611, respectively.

The Company’s ability to pay dividends to its shareholders is substantially dependent on the ability of Renasant Bank to transfer funds to the Company in the form of dividends, loans and advances. Under Mississippi law, a Mississippi bank may not pay dividends unless its earned surplus is in excess of three times capital stock. A Mississippi bank with earned surplus in excess of three times capital stock may pay a dividend, subject to the approval of the Mississippi Department of Banking and Consumer Finance (the “DBCF”). In addition, the FDIC also has the authority to prohibit the Bank from engaging in business practices that the FDIC considers to be unsafe or unsound, which, depending on the financial condition of the Bank, could include the payment of dividends. Accordingly, the approval of the DBCF is required prior to Renasant Bank paying dividends to the Company, and under certain circumstances the approval of the FDIC may be required. At December 31, 2017, the Bank’s earned surplus exceeded the Bank’s capital stock by more than ten times.

Federal Reserve regulations also limit the amount Renasant Bank may loan to the Company unless such loans are collateralized by specific obligations. At December 31, 2017, the maximum amount available for transfer from Renasant Bank to the Company in the form of loans was $105,075. As of December 31, 2017, no loans from the Bank to the Company were outstanding.