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Industry Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Fee revenue and other income: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | $ 86,136 | $ 83,368 | $ 79,907
Intersegment income (expense) |  |  |  |  |  |  |  |  |  |  |
Net interest income (expense) after provision for loan losses: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 39,401 | 37,449 | 37,299
Intersegment income (expense) |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 3,653 | 3,416 | 3,096
Income taxes | $ 1,806 | $ 1,855 | $ 2,035 | $ 2,020 | $ 2,017 | $ 2,083 | $ 1,932 | $ 1,946 | 7,716 | 7,978 | 7,759
Net income | 6,424 | $ 6,222 | $ 5,869 | $ 5,833 | 6,089 | $ 5,880 | $ 5,548 | $ 5,539 | 24,348 | 23,056 | 24,033
Goodwill | 11,590 |  |  |  | 11,590 |  |  |  | 11,590 | 11,590 | 11,590
Other intangible assets, net | 1,997 |  |  |  | 2,405 |  |  |  | 1,997 | 2,405 | 2,762
Total assets | 1,504,839 |  |  |  | 1,455,506 |  |  |  | 1,504,839 | 1,455,506 | 1,500,731
Information Services [Member] |  |  |  |  |  |  |  |  |  |  |
Fee revenue and other income: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 84,612 | 82,144 | 78,773
Intersegment income (expense) |  |  |  |  |  |  |  |  | 12,164 | 10,078 | 9,210
Net interest income (expense) after provision for loan losses: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 13,820 | 14,598 | 15,678
Intersegment income (expense) |  |  |  |  |  |  |  |  | 2 | 12 | 12
Depreciation and amortization |  |  |  |  |  |  |  |  | 3,368 | 3,164 | 2,795
Income taxes |  |  |  |  |  |  |  |  | 1,478 | 2,818 | 3,006
Net income |  |  |  |  |  |  |  |  | 14,049 | 14,635 | 16,379
Goodwill | 11,454 |  |  |  | 11,454 |  |  |  | 11,454 | 11,454 | 11,454
Other intangible assets, net | 1,997 |  |  |  | 2,405 |  |  |  | 1,997 | 2,405 | 2,762
Total assets | 763,999 |  |  |  | 702,491 |  |  |  | 763,999 | 702,491 | 782,844
Banking Services [Member] |  |  |  |  |  |  |  |  |  |  |
Fee revenue and other income: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 1,524 | 1,224 | 1,134
Intersegment income (expense) |  |  |  |  |  |  |  |  | 1,575 | 1,648 | 1,504
Net interest income (expense) after provision for loan losses: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  | 25,581 | 22,851 | 21,621
Intersegment income (expense) |  |  |  |  |  |  |  |  | (2) | (12) | (12)
Depreciation and amortization |  |  |  |  |  |  |  |  | 165 | 151 | 182
Income taxes |  |  |  |  |  |  |  |  | 6,238 | 5,160 | 4,753
Net income |  |  |  |  |  |  |  |  | 10,299 | 8,421 | 7,654
Goodwill | 136 |  |  |  | 136 |  |  |  | 136 | 136 | 136
Other intangible assets, net |  |  |  |  |  |  |  |  |  |  |
Total assets | 756,164 |  |  |  | 761,739 |  |  |  | 756,164 | 761,739 | 755,400
Corporate Eliminations and Other [Member] |  |  |  |  |  |  |  |  |  |  |
Fee revenue and other income: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  |  |  |
Intersegment income (expense) |  |  |  |  |  |  |  |  | (13,739) | (11,726) | (10,714)
Net interest income (expense) after provision for loan losses: |  |  |  |  |  |  |  |  |  |  |
Income from customers |  |  |  |  |  |  |  |  |  |  |
Intersegment income (expense) |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 120 | 101 | 119
Income taxes |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |
Other intangible assets, net |  |  |  |  |  |  |  |  |  |  |
Total assets | $ (15,324) |  |  |  | $ (8,724) |  |  |  | $ (15,324) | $ (8,724) | $ (37,513)

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