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Segment Information | 12 Months Ended
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Dec. 31, 2014
Segment Information [Abstract] |
Segment Information | Note 21 – Segment Information Trustmark’s management reporting structure includes three segments: General Banking, Wealth Management and Insurance. General Banking is primarily responsible for all traditional banking products and services, including loans and deposits. General Banking also consists of internal operations such as Human Resources, Executive Administration, Treasury, Funds Management, Public Affairs and Corporate Finance. Wealth Management provides customized solutions for affluent customers by integrating financial services with traditional banking products and services such as money management, full-service brokerage, financial planning, personal and institutional trust and retirement services. Through Fisher Brown Bottrell Insurance, Inc. (FBBI), a wholly owned subsidiary of TNB, Trustmark’s Insurance Division provides a full range of retail insurance products including commercial risk management products, bonding, group benefits and personal lines coverage. During the second quarter of 2014, Trustmark revised the composition of its operating segments by moving the Private Banking group from the Wealth Management Division to the General Banking Division as the result of a change in supervision of this group for segment reporting purposes. Prior period amounts presented below include reclassifications to conform to the current period presentation. The accounting policies of each reportable segment are the same as those of Trustmark except for its internal allocations. Noninterest expenses for back-office operations support are allocated to segments based on estimated uses of those services. Trustmark measures the net interest income of its business segments with a process that assigns cost of funds or earnings credit on a matched-term basis. This process, called "funds transfer pricing", charges an appropriate cost of funds to assets held by a business unit, or credits the business unit for potential earnings for carrying liabilities. The net of these charges and credits flows through to the General Banking segment, which contains the management team responsible for determining the bank's funding and interest rate risk strategies. The following table discloses financial information by reportable segment for the years ended December 31, 2014, 2013 and 2012 ($ in thousands):
|  | Years Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
General Banking |  |  |  |  |  |  |  |  |
Net interest income |  | $ | 404,214 |  |  | $ | 387,586 |  |  | $ | 340,130 |
Provision for loan losses, net |  |  | 7,382 |  |  |  | (7,382 | ) |  |  | 12,294 |
Noninterest income |  |  | 107,457 |  |  |  | 113,571 |  |  |  | 122,565 |
Noninterest expense |  |  | 355,693 |  |  |  | 367,031 |  |  |  | 302,234 |
Income before income taxes |  |  | 148,596 |  |  |  | 141,508 |  |  |  | 148,167 |
Income taxes |  |  | 33,726 |  |  |  | 32,499 |  |  |  | 38,079 |
General banking net income |  | $ | 114,870 |  |  | $ | 109,009 |  |  | $ | 110,088 |
Selected Financial Information |  |  |  |  |  |  |  |  |  |  |  |
Average assets |  | $ | 11,958,078 |  |  | $ | 11,463,789 |  |  | $ | 9,737,230 |
Depreciation and amortization |  | $ | 35,038 |  |  | $ | 35,971 |  |  | $ | 27,886 |
Wealth Management |  |  |  |  |  |  |  |  |  |  |  |
Net interest income |  | $ | 851 |  |  | $ | 582 |  |  | $ | 559 |
Noninterest income |  |  | 32,209 |  |  |  | 29,446 |  |  |  | 24,421 |
Noninterest expense |  |  | 26,733 |  |  |  | 24,713 |  |  |  | 20,916 |
Income before income taxes |  |  | 6,327 |  |  |  | 5,315 |  |  |  | 4,064 |
Income taxes |  |  | 2,105 |  |  |  | 1,754 |  |  |  | 1,354 |
Wealth Management net income |  | $ | 4,222 |  |  | $ | 3,561 |  |  | $ | 2,710 |
Selected Financial Information |  |  |  |  |  |  |  |  |  |  |  |
Average assets |  | $ | 1,504 |  |  | $ | 304 |  |  | $ | 261 |
Depreciation and amortization |  | $ | 190 |  |  | $ | 157 |  |  | $ | 164 |
Insurance |  |  |  |  |  |  |  |  |  |  |  |
Net interest income |  | $ | 271 |  |  | $ | 319 |  |  | $ | 301 |
Noninterest income |  |  | 33,476 |  |  |  | 30,842 |  |  |  | 28,203 |
Noninterest expense |  |  | 26,579 |  |  |  | 23,987 |  |  |  | 21,352 |
Income before income taxes |  |  | 7,168 |  |  |  | 7,174 |  |  |  | 7,152 |
Income taxes |  |  | 2,698 |  |  |  | 2,684 |  |  |  | 2,667 |
Insurance net income |  | $ | 4,470 |  |  | $ | 4,490 |  |  | $ | 4,485 |
Selected Financial Information |  |  |  |  |  |  |  |  |  |  |  |
Average assets |  | $ | 68,448 |  |  | $ | 66,876 |  |  | $ | 65,560 |
Depreciation and amortization |  | $ | 844 |  |  | $ | 1,025 |  |  | $ | 1,225 |
Consolidated |  |  |  |  |  |  |  |  |  |  |  |
Net interest income |  | $ | 405,336 |  |  | $ | 388,487 |  |  | $ | 340,990 |
Provision for loan losses, net |  |  | 7,382 |  |  |  | (7,382 | ) |  |  | 12,294 |
Noninterest income |  |  | 173,142 |  |  |  | 173,859 |  |  |  | 175,189 |
Noninterest expense |  |  | 409,005 |  |  |  | 415,731 |  |  |  | 344,502 |
Income before income taxes |  |  | 162,091 |  |  |  | 153,997 |  |  |  | 159,383 |
Income taxes |  |  | 38,529 |  |  |  | 36,937 |  |  |  | 42,100 |
Consolidated net income |  | $ | 123,562 |  |  | $ | 117,060 |  |  | $ | 117,283 |
Selected Financial Information |  |  |  |  |  |  |  |  |  |  |  |
Average assets |  | $ | 12,028,030 |  |  | $ | 11,530,969 |  |  | $ | 9,803,051 |
Depreciation and amortization |  | $ | 36,072 |  |  | $ | 37,153 |  |  | $ | 29,275 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599 + Details
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