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Note 22 - Condensed Financial Information (Parent Company Only) - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
OPERATING ACTIVITIES |  |  |
Net income | $ 92,940 | $ 96,814 | $ 74,364
Items not requiring (providing) cash |  |  |
Stock-based compensation expense | 10,681 | 3,418 | 4,018
Deferred income taxes | 23,251 | 9,832 | 13,599
Changes in assets and liabilities: |  |  |
Other assets | 12,456 | (8,254) | 5,453
INVESTING ACTIVITIES |  |  |
Net originations of loans not covered by FDIC loss share | (698,532) | (368,162) | (301,323)
Purchases of premises and equipment, net | (34,216) | (18,892) | (14,832)
Proceeds from maturities of available-for-sale securities | 487,717 | 257,388 | 435,438
FINANCING ACTIVITIES |  |  |
Dividends paid on preferred stock |  | (24) | (257)
Dividends paid on common stock | (35,116) | (28,743) | (27,026)
Redemption of preferred stock |  | (30,852) |
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS | 312,383 | 33,397 | (83,647)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR | 285,659 | 252,262 | 335,909
CASH AND CASH EQUIVALENTS, END OF YEAR | 598,042 | 285,659 | 252,262
Parent Company [Member] |  |  |
OPERATING ACTIVITIES |  |  |
Net income | 92,940 | 96,814 | 74,364
Items not requiring (providing) cash |  |  |
Stock-based compensation expense | 10,681 | 3,418 | 4,018
Depreciation and amortization | 1,183 | 700 | 317
Deferred income taxes | 1,190 | (2,526) | 1,287
Equity in undistributed net income of bank subsidiaries | (39,645) | (25,072) | (4,276)
Changes in assets and liabilities: |  |  |
Other assets | 8,585 | 2,816 | (15,232)
Other liabilities | (6,769) | (1,358) | 13,121
Net cash provided by operating activities | 68,165 | 74,792 | 73,599
INVESTING ACTIVITIES |  |  |
Net originations of loans not covered by FDIC loss share | 90 | (1,710) |
Purchases of premises and equipment, net | (18) | (6,896) | 56
Additional investment in subsidiary | (15,000) |  |
Proceeds from maturities of available-for-sale securities | 42 | 1,973 |
Purchases of available-for-sale securities | (2,752) | (3) | (354)
Cash received (paid) in business combinations | (100,468) | (35,048) | 44,173
Net cash (used in) provided by investing activities | (118,106) | (41,684) | 43,875
FINANCING ACTIVITIES |  |  |
Issuance (repayment) of long-term debt, net | 8,014 | (4,544) | 8,126
Issuance of common stock, net | 2,878 | 4,938 | 3,529
Dividends paid on preferred stock |  | (24) | (257)
Dividends paid on common stock | (35,116) | (28,743) | (27,026)
Redemption of preferred stock |  | (30,852) |
Net cash used in financing activities | (24,224) | (59,225) | (15,628)
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS | (74,165) | (26,117) | 101,846
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR | 93,266 | 119,383 | 17,537
CASH AND CASH EQUIVALENTS, END OF YEAR | $ 19,101 | $ 93,266 | $ 119,383

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3044-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906 + Details
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