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Parent Company Statements - Statements of Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Net income | $ 110,387 | $ 84,242 | $ 86,135
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Share-based compensation expense | 5,063 | 3,942 | 2,814
Debt and Equity Securities, Unrealized Gain (Loss) | (3,267) | 0 | 0
(Decrease) increase in other liabilities | 5,131 | (11,778) | 2,006
Net cash provided by operating activities | 132,950 | 87,991 | 87,887
Payments to Acquire Businesses, Gross | (30,684) | 0 | 0
Investing activities: |  |  |
Other investing activities, net | 60 | 0 | 0
Net cash used in investing activities | 44,292 | (61,971) | (152,560)
Financing activities |  |  |
Repayment of subordinated notes | 0 | (30,000) | 0
Payments Related to Tax Withholding for Share-based Compensation | 610 | 347 | 0
Net cash (used in) provided by financing activities | (179,140) | (3,354) | 61,660
Increase (decrease) in cash and cash equivalents | (1,898) | 22,666 | (3,013)
Parent Company |  |  |
Net income | 110,387 | 84,242 | 86,135
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Undistributed income of subsidiaries | (14,270) | (26,699) | (30,692)
Compensation expense for issuance of treasury shares to directors | 1,109 | 1,241 | 950
Share-based compensation expense | 3,954 | 2,701 | 1,864
Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments | 0 | (1,821) | 0
(Increase) decrease in other assets | (2,073) | 205 | (3,425)
(Decrease) increase in other liabilities | (163) | 475 | (2,524)
Net cash provided by operating activities | 95,677 | 60,344 | 52,308
Proceeds from Sale of Available-for-sale Securities, Equity | 0 | 2,265 | 0
Investing activities: |  |  |
Repayment of investments in and advances to subsidiaries | 0 | 0 | (15,000)
Net cash used in investing activities | (30,624) | 2,265 | 15,000
Financing activities |  |  |
Cash dividends paid | (63,013) | (57,493) | (57,653)
Cash payment for fractional shares | (4) | (6) | (4)
Payments Related to Tax Withholding for Share-based Compensation | (610) | (347) | 0
Net cash (used in) provided by financing activities | (69,411) | (95,224) | (57,657)
Increase (decrease) in cash and cash equivalents | (4,358) | (32,615) | 9,651
Cash at beginning of year | 79,452 | 112,067 | 102,416
Cash at end of year | 75,094 | 79,452 | 112,067
Treasury Stock, Common [Member] |  |  |
Financing activities |  |  |
Payments for Repurchase of Equity | $ 5,784 | $ 7,378 | $ 0

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