Significant Accounting Policies	3 Months Ended
Mar. 31, 2016
Significant Accounting Policies [Abstract]
Significant Accounting Policies	Note 1 - Significant Accounting Policies Business Operations The accompanying unaudited interim consolidated financial statements of Synovus Financial Corp. include the accounts of the Parent Company and its consolidated subsidiaries. Synovus Financial Corp. is a financial services company based in Columbus, Georgia, with approximately $29 billion in assets. Through our wholly-owned subsidiary, Synovus Bank, member FDIC, the company provides commercial and retail banking in addition to a full suite of specialized products and services including private banking, treasury management, wealth management, and international banking. Synovus also provides mortgage services, financial planning, and investment advisory services through its wholly-owned subsidiaries, Synovus Mortgage, Synovus Trust, and Synovus Securities, as well as its GLOBALT and Creative Financial Group divisions. These specialized offerings, combined with our traditional banking products and services, make Synovus Bank a great choice for retail and commercial customers. Synovus Bank's 28 locally-branded bank divisions are positioned in some of the best markets in the Southeast, with 257 branches and 335 ATMs in Georgia, Alabama, South Carolina, Florida, and Tennessee. Basis of Presentation The accompanying unaudited interim consolidated financial statements have been prepared in accordance with the instructions to the SEC Form 10-Q and Article 10 of Regulation S-X; therefore, they do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, comprehensive income, and cash flows in conformity with GAAP. All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the consolidated financial position and results of operations for the periods covered by this Report have been included. The accompanying unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in Synovus' 2015 Form 10-K. There have been no significant changes to the accounting policies as disclosed in Synovus' 2015 Form 10-K. In preparing the unaudited interim consolidated financial statements in accordance with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the respective consolidated balance sheets and the reported amounts of revenues and expenses for the periods presented. Actual results could differ significantly from those estimates. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, the valuation of other real estate, the fair value of investment securities, the fair value of private equity investments, contingent liabilities related to legal matters, and the deferred tax assets valuation allowance. Cash and Cash Equivalents Cash and cash equivalents consist of cash and due from banks. At March 31, 2016 and December 31, 2015, $88 thousand and $100 thousand, respectively, of the due from banks balance was restricted as to withdrawal. Short-term Investments Short-term investments consist of interest bearing funds with the Federal Reserve Bank, interest earning deposits with banks, and Federal funds sold and securities purchased under resale agreements. At March 31, 2016 and December 31, 2015, interest bearing funds with the Federal Reserve Bank included $130.2 million and $117.3 million, respectively, on deposit to meet Federal Reserve Bank requirements. Interest earning deposits with banks include $5.5 million and $2.2 million at March 31, 2016 and December 31, 2015, respectively, which is pledged as collateral in connection with certain letters of credit. Federal funds sold include $74.0 million and $65.9 million at March 31, 2016 and December 31, 2015, respectively, which are pledged to collateralize certain derivative financial instruments. Federal funds sold and securities purchased under resale agreements, and Federal funds purchased and securities sold under repurchase agreements, generally mature in one day. Recently Adopted Accounting Standards Updates During 2015, the FASB issued ASU 2015-02, Amendments to the Consolidation Analysis, which became effective for Synovus on January 1, 2016. ASU 2015-02 was issued by the FASB to modify the analysis that companies must perform in order to determine whether a legal entity should be consolidated. ASU 2015-02 simplifies current consolidation rules by reducing the number of consolidation models; placing more emphasis on risk of loss when determining a controlling financial interest; reducing the frequency of the application of related-party guidance when determining a controlling financial interest in a VIE; and changing consolidation conclusions for public and private companies in several industries that typically make use of limited partnerships or VIEs. Adoption of ASU 2015-02 did not have an impact on Synovus’ consolidated financial statements. Reclassifications Prior periods' consolidated financial statements are reclassified whenever necessary to conform to the current periods' presentation. Subsequent Events Synovus has evaluated for consideration, or disclosure, all transactions, events, and circumstances, subsequent to the date of the consolidated balance sheet and through the date the accompanying unaudited interim consolidated financial statements were issued, and has reflected, or disclosed, those items deemed appropriate within the unaudited interim consolidated financial statements.

Note 1 - Significant Accounting Policies

Business Operations

The accompanying unaudited interim consolidated financial statements of Synovus Financial Corp. include the accounts of the Parent Company and its consolidated subsidiaries. Synovus Financial Corp. is a financial services company based in Columbus, Georgia, with approximately $29 billion in assets. Through our wholly-owned subsidiary, Synovus Bank, member FDIC, the company provides commercial and retail banking in addition to a full suite of specialized products and services including private banking, treasury management, wealth management, and international banking. Synovus also provides mortgage services, financial planning, and investment advisory services through its wholly-owned subsidiaries, Synovus Mortgage, Synovus Trust, and Synovus Securities, as well as its GLOBALT and Creative Financial Group divisions. These specialized offerings, combined with our traditional banking products and services, make Synovus Bank a great choice for retail and commercial customers.

Synovus Bank's 28 locally-branded bank divisions are positioned in some of the best markets in the Southeast, with 257 branches and 335 ATMs in Georgia, Alabama, South Carolina, Florida, and Tennessee.

Basis of Presentation

The accompanying unaudited interim consolidated financial statements have been prepared in accordance with the instructions to the SEC Form 10-Q and Article 10 of Regulation S-X; therefore, they do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, comprehensive income, and cash flows in conformity with GAAP. All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the consolidated financial position and results of operations for the periods covered by this Report have been included. The accompanying unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in Synovus' 2015 Form 10-K. There have been no significant changes to the accounting policies as disclosed in Synovus' 2015 Form 10-K.

In preparing the unaudited interim consolidated financial statements in accordance with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the respective consolidated balance sheets and the reported amounts of revenues and expenses for the periods presented. Actual results could differ significantly from those estimates.

Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, the valuation of other real estate, the fair value of investment securities, the fair value of private equity investments, contingent liabilities related to legal matters, and the deferred tax assets valuation allowance.

Cash and Cash Equivalents

Cash and cash equivalents consist of cash and due from banks. At March 31, 2016 and December 31, 2015, $88 thousand and $100 thousand, respectively, of the due from banks balance was restricted as to withdrawal.

Short-term Investments

Short-term investments consist of interest bearing funds with the Federal Reserve Bank, interest earning deposits with banks, and Federal funds sold and securities purchased under resale agreements. At March 31, 2016 and December 31, 2015, interest bearing funds with the Federal Reserve Bank included $130.2 million and $117.3 million, respectively, on deposit to meet Federal Reserve Bank requirements. Interest earning deposits with banks include $5.5 million and $2.2 million at March 31, 2016 and December 31, 2015, respectively, which is pledged as collateral in connection with certain letters of credit. Federal funds sold include $74.0 million and $65.9 million at March 31, 2016 and December 31, 2015, respectively, which are pledged to collateralize certain derivative financial instruments. Federal funds sold and securities purchased under resale agreements, and Federal funds purchased and securities sold under repurchase agreements, generally mature in one day.

Recently Adopted Accounting Standards Updates

During 2015, the FASB issued ASU 2015-02, Amendments to the Consolidation Analysis, which became effective for Synovus on January 1, 2016. ASU 2015-02 was issued by the FASB to modify the analysis that companies must perform in order to determine whether a legal entity should be consolidated. ASU 2015-02 simplifies current consolidation rules by reducing the number of consolidation models; placing more emphasis on risk of loss when determining a controlling financial interest; reducing the frequency of the application of related-party guidance when determining a controlling financial interest in a VIE; and changing consolidation conclusions for public and private companies in several industries that typically make use of limited partnerships or VIEs. Adoption of ASU 2015-02 did not have an impact on Synovus’ consolidated financial statements.

Reclassifications

Prior periods' consolidated financial statements are reclassified whenever necessary to conform to the current periods' presentation.

Subsequent Events

Synovus has evaluated for consideration, or disclosure, all transactions, events, and circumstances, subsequent to the date of the consolidated balance sheet and through the date the accompanying unaudited interim consolidated financial statements were issued, and has reflected, or disclosed, those items deemed appropriate within the unaudited interim consolidated financial statements.