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CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Interest income: |  |  |  |
Interest and fees on loans | $ 45,791 | $ 46,073 | $ 91,382 | $ 91,766
Interest and dividends on taxable investments | 13,288 | 12,772 | 25,348 | 25,242
Interest and dividends on nontaxable investments | 4,801 | 5,264 | 9,604 | 10,340
Total interest income | 63,880 | 64,109 | 126,334 | 127,348
Interest expense: |  |  |  |
Interest on deposits | 1,731 | 2,068 | 3,531 | 4,303
Interest on borrowings | 294 | 254 | 494 | 537
Interest on subordinated debt held by unconsolidated subsidiary trusts | 627 | 617 | 1,241 | 1,229
Total interest expense | 2,652 | 2,939 | 5,266 | 6,069
Net interest income | 61,228 | 61,170 | 121,068 | 121,279
Provision for loan losses | 591 | 1,900 | 1,214 | 2,900
Net interest income after provision for loan losses | 60,637 | 59,270 | 119,854 | 118,379
Noninterest income: |  |  |  |
Deposit service fees | 13,213 | 13,172 | 25,683 | 25,427
Other banking services | 799 | 1,608 | 1,854 | 2,798
Employee benefit services | 11,322 | 10,448 | 22,397 | 20,883
Wealth management services | 4,385 | 4,438 | 8,831 | 8,912
Total noninterest income | 29,719 | 29,666 | 58,765 | 58,020
Noninterest expenses: |  |  |  |
Salaries and employee benefits | 31,010 | 30,409 | 62,039 | 61,149
Occupancy and equipment | 6,844 | 6,916 | 14,239 | 14,608
Data processing and communications | 7,473 | 7,251 | 14,463 | 14,054
Amortization of intangible assets | 880 | 1,101 | 1,799 | 2,242
Legal and professional fees | 1,642 | 1,507 | 3,388 | 3,454
Office supplies and postage | 1,517 | 1,647 | 3,097 | 3,198
Business development and marketing | 2,258 | 1,930 | 3,822 | 3,660
FDIC insurance premiums | 963 | 947 | 1,952 | 1,966
Acquisition expenses | 361 | 0 | 756 | 123
Other | 3,100 | 3,456 | 6,441 | 6,632
Total noninterest expenses | 56,048 | 55,164 | 111,996 | 111,086
Income before income taxes | 34,308 | 33,772 | 66,623 | 65,313
Income taxes | 10,468 | 10,096 | 20,486 | 19,463
Net income | $ 23,840 | $ 23,676 | $ 46,137 | $ 45,850
Basic earnings per share (in dollars per share) | $ 0.58 | $ 0.58 | $ 1.13 | $ 1.13
Diluted earnings per share (in dollars per share) | 0.58 | 0.57 | 1.12 | 1.11
Cash dividends declared per share (in dollars per share) | $ 0.30 | $ 0.28 | $ 0.60 | $ 0.56

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- Definition Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14(b)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.6) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
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