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PARENT COMPANY FINANCIALS ONLY (Tables) | 12 Months Ended
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Dec. 31, 2018
Condensed Financial Information Disclosure [Abstract] |
Schedule of Condensed Balance Sheets | BALANCE SHEETS
| December 31
| 2018 |  | 2017
| (Dollars in thousands)
Assets |
Cash(1) | $ | 64,256 |  |  | $ | 48,131 |
Investments in subsidiaries(2) | 1,128,407 |  |  | 1,010,125 |
Prepaid income taxes | 1,014 |  |  | 786 |
Deferred tax asset | — |  |  | 96 |
Derivative instruments(1) | 1,711 |  |  | 1,535 |
Other assets | 37 |  |  | — |
Total assets | $ | 1,195,425 |  |  | $ | 1,060,673 |
Liabilities and stockholders’ equity |  |  |
Dividends payable | $ | 10,671 |  |  | $ | 8,786 |
Junior subordinated debentures | 76,173 |  |  | 73,073 |
Subordinated debentures | 34,728 |  |  | 34,682 |
Other liabilities | 363 |  |  | 323 |
Total liabilities | 121,935 |  |  | 116,864 |
Stockholders’ equity | 1,073,490 |  |  | 943,809 |
Total liabilities and stockholders’ equity | $ | 1,195,425 |  |  | $ | 1,060,673 |
(1) | Entire balance eliminates in consolidation.
(2) Majority of balance eliminates in consolidation
Schedule of Condensed Statements of Income | STATEMENTS OF INCOME
| Years Ended December 31
| 2018 |  | 2017 |  | 2016
| (Dollars in thousands)
Income |
Dividends received from subsidiaries(1) | $ | 71,255 |  |  | $ | 47,006 |  |  | $ | 44,598 |
Interest income(2) | — |  |  | 50 |  |  | 98 |
Total income | 71,255 |  |  | 47,056 |  |  | 44,696 |
Expenses |  |  |  |  |
Interest expense | 4,234 |  |  | 3,995 |  |  | 5,901 |
Total expenses | 4,234 |  |  | 3,995 |  |  | 5,901 |
Income before income taxes and equity in undistributed income of subsidiaries | 67,021 |  |  | 43,061 |  |  | 38,795 |
Income tax benefit | (1,151 | ) |  | (1,523 | ) |  | (1,791 | )
Income of parent company | 68,172 |  |  | 44,584 |  |  | 40,586 |
Equity in undistributed income of subsidiaries | 53,450 |  |  | 42,620 |  |  | 36,062 |
Net income | $ | 121,622 |  |  | $ | 87,204 |  |  | $ | 76,648 |
(1) | Majority of balance eliminates in consolidation.
(2) Entire balance eliminated in consolidation.
Schedule of Condensed Statements of Cash Flows | STATEMENTS OF CASH FLOWS
| Years Ended December 31
| 2018 |  | 2017 |  | 2016
| (Dollars in thousands)
Cash flows from operating activities |
Net income | $ | 121,622 |  |  | $ | 87,204 |  |  | $ | 76,648 |
Adjustments to reconcile net income to cash provided by operating activities |  |  |  |  |
Amortization (accretion) | 54 |  |  | 12 |  |  | (154 | )
Deferred income tax expense | 49 |  |  | 51 |  |  | 678 |
Change in prepaid income taxes and other assets | 135 |  |  | (99 | ) |  | 423 |
Change in other liabilities | 6 |  |  | (562 | ) |  | (5,532 | )
Equity in undistributed income of subsidiaries | (53,450 | ) |  | (42,620 | ) |  | (36,062 | )
Net cash provided by operating activities | 68,416 |  |  | 43,986 |  |  | 36,001 |
Cash flows used in investing activities |  |  |  |  |
Cash paid for acquisitions, net of cash acquired (1) | (13,649 | ) |  | (4,834 | ) |  | (950 | )
Net cash used in investing activities | (13,649 | ) |  | (4,834 | ) |  | (950 | )
Cash flows used in financing activities |  |  |  |  |
Restricted stock awards issued, net of awards surrendered | (1,371 | ) |  | (1,422 | ) |  | (696 | )
Net proceeds from exercise of stock options | 184 |  |  | 214 |  |  | 201 |
Proceeds from shares issued under the direct stock purchase plan | 2,712 |  |  | 1,636 |  |  | 2,323 |
Common dividends paid | (40,167 | ) |  | (34,045 | ) |  | (29,711 | )
Net cash used in financing activities | (38,642 | ) |  | (33,617 | ) |  | (27,883 | )
Net increase in cash and cash equivalents | 16,125 |  |  | 5,535 |  |  | 7,168 |
Cash and cash equivalents at the beginning of the year | 48,131 |  |  | 42,596 |  |  | 35,428 |
Cash and cash equivalents at the end of the year | $ | 64,256 |  |  | $ | 48,131 |  |  | $ | 42,596 |
(1) The majority of the net assets acquired at the parent company represented each of the acquired companies' investments in their wholly owned subsidiaries, which were eliminated in consolidation at December 31, 2018, 2017, and 2016, respectively.

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