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Industry Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Fee revenue and other income: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | $ 76,572 | $ 71,138 | $ 62,824
Intersegment income (expense) |  |  |  |  |  |  |  |  |  |  |
Net interest income (expense) after provision for loan losses: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 38,245 | 40,385 | 43,711
Intersegment income (expense) |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 2,896 | 2,532 | 2,062
Income tax expense | 1,582 | 1,533 | 2,106 | 2,013 | 1,607 | 1,890 | 2,205 | 2,185 | 7,234 | 7,887 | 8,497
Net income | 5,254 | 6,138 | 6,073 | 6,032 | 5,341 | 6,092 | 5,962 | 5,908 | 23,497 | 23,303 | 23,009
Goodwill | 11,590 |  |  |  | 11,590 |  |  |  | 11,590 | 11,590 | 7,471
Other intangible assets, net | 3,222 |  |  |  | 3,757 |  |  |  | 3,222 | 3,757 | 161
Total assets | 1,326,020 |  |  |  | 1,287,387 |  |  |  | 1,326,020 | 1,287,387 | 1,319,301
Information Services [Member] |  |  |  |  |  |  |  |  |  |  |
Fee revenue and other income: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 75,010 | 70,376 | 61,470
Intersegment income (expense) |  |  |  |  |  |  |  |  | 9,637 | 9,478 | 10,088
Net interest income (expense) after provision for loan losses: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 15,986 | 18,547 | 21,030
Intersegment income (expense) |  |  |  |  |  |  |  |  | 11 | 24 | 17
Depreciation and amortization |  |  |  |  |  |  |  |  | 2,338 | 2,392 | 1,874
Income tax expense |  |  |  |  |  |  |  |  | 2,232 | 2,802 | 3,028
Net income |  |  |  |  |  |  |  |  | 15,237 | 15,761 | 14,716
Goodwill | 11,454 |  |  |  | 11,454 |  |  |  | 11,454 | 11,454 | 7,335
Other intangible assets, net | 3,222 |  |  |  | 3,757 |  |  |  | 3,222 | 3,757 | 161
Total assets | 657,604 |  |  |  | 642,623 |  |  |  | 657,604 | 642,623 | 698,685
Banking Services [Member] |  |  |  |  |  |  |  |  |  |  |
Fee revenue and other income: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 1,216 | 1,272 | 1,354
Intersegment income (expense) |  |  |  |  |  |  |  |  | 1,479 | 1,663 | 1,859
Net interest income (expense) after provision for loan losses: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 22,259 | 21,838 | 22,681
Intersegment income (expense) |  |  |  |  |  |  |  |  | (11) | (24) | (17)
Depreciation and amortization |  |  |  |  |  |  |  |  | 143 | 101 | 164
Income tax expense |  |  |  |  |  |  |  |  | 5,002 | 5,085 | 5,469
Net income |  |  |  |  |  |  |  |  | 8,133 | 8,014 | 8,293
Goodwill | 136 |  |  |  | 136 |  |  |  | 136 | 136 | 136
Other intangible assets, net |  |  |  |  |  |  |  |  |  |  |
Total assets | 679,357 |  |  |  | 668,648 |  |  |  | 679,357 | 668,648 | 622,996
Corporate Eliminations and Other [Member] |  |  |  |  |  |  |  |  |  |  |
Fee revenue and other income: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 346 | (510) |
Intersegment income (expense) |  |  |  |  |  |  |  |  | (11,116) | (11,141) | (11,947)
Net interest income (expense) after provision for loan losses: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  |  |  |
Intersegment income (expense) |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 115 | 39 | 24
Income tax expense |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 127 | (472) |
Goodwill |  |  |  |  |  |  |  |  |  |  |
Other intangible assets, net |  |  |  |  |  |  |  |  |  |  |
Total assets | $ (10,941) |  |  |  | $ (23,884) |  |  |  | $ (10,941) | $ (23,884) | $ (2,380)

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