Participation in U.S. Treasury Capital Purchase Program	9 Months Ended
Sep. 30, 2011
Participation in U.S. Treasury Capital Purchase Program [Abstract]
Participation in U.S. Treasury Capital Purchase Program	Note 2. Participation in U.S. Treasury Capital Purchase Program On December 12, 2008, Pinnacle Financial issued 95,000 shares of preferred stock to the Treasury for $95 million pursuant to the Treasury's Capital Purchase Program (CPP) under the Troubled Assets Relief Program (TARP). The CPP preferred stock is non-voting, other than having class voting rights on certain matters, and pays cumulative dividends quarterly at a rate of 5% per annum for the first five years and 9% thereafter. Pinnacle Financial can redeem the preferred shares issued to the Treasury under the CPP at any time subject to a requirement that it must consult with its primary federal regulator before redemption. Additionally, Pinnacle Financial issued warrants to purchase 534,910 shares of common stock to the Treasury as a condition to its participation in the CPP. The warrants have an exercise price of $26.64 each, are immediately exercisable and expire 10 years from the date of issuance. On June 16, 2009, Pinnacle Financial completed the sale of 8,855,000 shares of its common stock in a public offering, resulting in net proceeds to Pinnacle Financial of approximately $109 million. As a result, and pursuant to the terms of the warrants issued to the U.S. Treasury in connection with Pinnacle Financial's participation in the CPP, the number of shares issuable upon exercise of the warrants issued to the Treasury in connection with the CPP was reduced by 50%, or 267,455 shares.

Note 2. Participation in U.S. Treasury Capital Purchase Program

On December 12, 2008, Pinnacle Financial issued 95,000 shares of preferred stock to the Treasury for $95 million pursuant to the Treasury's Capital Purchase Program (CPP) under the Troubled Assets Relief Program (TARP). The CPP preferred stock is non-voting, other than having class voting rights on certain matters, and pays cumulative dividends quarterly at a rate of 5% per annum for the first five years and 9% thereafter. Pinnacle Financial can redeem the preferred shares issued to the Treasury under the CPP at any time subject to a requirement that it must consult with its primary federal regulator before redemption. Additionally, Pinnacle Financial issued warrants to purchase 534,910 shares of common stock to the Treasury as a condition to its participation in the CPP. The warrants have an exercise price of $26.64 each, are immediately exercisable and expire 10 years from the date of issuance. On June 16, 2009, Pinnacle Financial completed the sale of 8,855,000 shares of its common stock in a public offering, resulting in net proceeds to Pinnacle Financial of approximately $109 million. As a result, and pursuant to the terms of the warrants issued to the U.S. Treasury in connection with Pinnacle Financial's participation in the CPP, the number of shares issuable upon exercise of the warrants issued to the Treasury in connection with the CPP was reduced by 50%, or 267,455 shares.