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Loans and Allowance for Loan Losses (Allowance for Loan Losses by Portfolio Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 181,179 | $ 128,762 |  |
Allowance for loan losses: Charge-offs | (24,740) | (10,464) |  |
Allowance for loan losses: Recoveries | 3,508 | 4,355 |  |
Allowance for loan losses: Net provision for loan losses | 60,036 | 6,154 |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable | (2,189) | (421) |  |
Allowance for loan losses: Ending balance | 217,794 | 128,386 |  |
Allowance for loan losses: Individually evaluated for impairment | 28,167 | 1,092 |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | 20,502 | 27,638 |  |
Allowance for loan losses: Collectively evaluated for impairment | 169,125 | 99,656 |  |
Ending balance: Loans | 15,978,124 | 13,924,386 | $ 15,703,314 |
Loans: Individually evaluated for impairment | 230,741 | 41,279 |  |
Loans: Acquired-impaired loans | 221,893 | 283,777 |  |
Loans: Collectively evaluated for impairment | 15,525,490 | 13,599,330 |  |
Originated Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 158,026 | 97,701 |  |
Allowance for loan losses: Charge-offs | (24,693) | (7,460) |  |
Allowance for loan losses: Recoveries | 3,394 | 3,806 |  |
Allowance for loan losses: Net provision for loan losses | 60,558 | 6,447 |  |
Allowance for loan losses: Ending balance | 197,285 | 100,494 |  |
Allowance for loan losses: Individually evaluated for impairment | 28,160 | 838 |  |
Allowance for loan losses: Collectively evaluated for impairment | 169,125 | 99,656 |  |
Ending balance: Loans | 15,567,288 | 12,920,530 | 15,258,587 |
Loans: Individually evaluated for impairment | 228,435 | 38,700 |  |
Loans: Collectively evaluated for impairment | 15,338,853 | 12,881,830 |  |
Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 33 | $ 477 |  |
Allowance for loan losses: Charge-offs |  |  |  |
Allowance for loan losses: Recoveries |  |  |  |
Allowance for loan losses: Net provision for loan losses | $ (26) | $ (223) |  |
Allowance for loan losses: Ending balance | 7 | 254 |  |
Allowance for loan losses: Individually evaluated for impairment | $ 7 | $ 254 |  |
Allowance for loan losses: Amounts related to acquired-impaired loans |  |  |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 211,620 | $ 765,324 | 241,430 |
Loans: Individually evaluated for impairment | 2,306 | 2,579 |  |
Loans: Acquired-impaired loans | 22,677 | 45,245 | 22,541 | $ 61,276
Loans: Collectively evaluated for impairment | 186,637 | 717,500 |  |
FDIC Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 23,120 | 30,584 |  |
Allowance for loan losses: Charge-offs | (47) | (3,004) |  |
Allowance for loan losses: Recoveries | 114 | 549 |  |
Allowance for loan losses: Net provision for loan losses | (496) | (70) |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable | (2,189) | (421) |  |
Allowance for loan losses: Ending balance | $ 20,502 | $ 27,638 |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | $ 20,502 | $ 27,638 |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 199,216 | $ 238,532 | 203,297 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 199,216 | $ 238,532 | 203,297 | $ 252,409
Loans: Collectively evaluated for impairment |  |  |  |
Commercial Non-Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 109,428 | $ 51,169 |  |
Allowance for loan losses: Charge-offs | (17,667) | (1,824) |  |
Allowance for loan losses: Recoveries | 812 | 995 |  |
Allowance for loan losses: Net provision for loan losses | 52,103 | 6,752 |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable | (17) | (13) |  |
Allowance for loan losses: Ending balance | 144,659 | 57,079 |  |
Allowance for loan losses: Individually evaluated for impairment | 26,502 | 529 |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | 439 | 783 |  |
Allowance for loan losses: Collectively evaluated for impairment | 117,718 | 55,767 |  |
Ending balance: Loans | 7,145,406 | 5,987,084 | 6,995,824 |
Loans: Individually evaluated for impairment | 201,029 | 14,566 |  |
Loans: Acquired-impaired loans | 12,659 | 15,645 |  |
Loans: Collectively evaluated for impairment | 6,931,718 | 5,956,873 |  |
Commercial Non-Real Estate [Member] | Originated Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 108,982 | 50,258 |  |
Allowance for loan losses: Charge-offs | (17,667) | (1,697) |  |
Allowance for loan losses: Recoveries | 809 | 981 |  |
Allowance for loan losses: Net provision for loan losses | 52,096 | 6,754 |  |
Allowance for loan losses: Ending balance | 144,220 | 56,296 |  |
Allowance for loan losses: Individually evaluated for impairment | 26,502 | 529 |  |
Allowance for loan losses: Collectively evaluated for impairment | 117,718 | 55,767 |  |
Ending balance: Loans | 7,088,146 | 5,861,887 | 6,930,453 |
Loans: Individually evaluated for impairment | 201,029 | 14,566 |  |
Loans: Collectively evaluated for impairment | $ 6,887,117 | $ 5,847,321 |  |
Commercial Non-Real Estate [Member] | Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance |  |  |  |
Allowance for loan losses: Charge-offs |  |  |  |
Allowance for loan losses: Recoveries |  |  |  |
Allowance for loan losses: Net provision for loan losses |  |  |  |
Allowance for loan losses: Ending balance |  |  |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans |  |  |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 51,949 | $ 118,260 | 59,843 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 7,348 | $ 8,708 |  |
Loans: Collectively evaluated for impairment | 44,601 | 109,552 |  |
Commercial Non-Real Estate [Member] | FDIC Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 446 | 911 |  |
Allowance for loan losses: Charge-offs |  | (127) |  |
Allowance for loan losses: Recoveries | $ 3 | 14 |  |
Allowance for loan losses: Net provision for loan losses | 7 | (2) |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable | (17) | (13) |  |
Allowance for loan losses: Ending balance | $ 439 | $ 783 |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | $ 439 | $ 783 |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 5,311 | $ 6,937 | 5,528 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 5,311 | $ 6,937 |  |
Loans: Collectively evaluated for impairment |  |  |  |
Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 15,899 | $ 21,082 |  |
Allowance for loan losses: Charge-offs | (927) | (2,619) |  |
Allowance for loan losses: Recoveries | 221 | 110 |  |
Allowance for loan losses: Net provision for loan losses | $ 6,996 | (987) |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable |  | 1,207 |  |
Allowance for loan losses: Ending balance | $ 22,189 | 18,793 |  |
Allowance for loan losses: Individually evaluated for impairment | 1,339 | 401 |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | 1,511 | 3,215 |  |
Allowance for loan losses: Collectively evaluated for impairment | 19,339 | 15,177 |  |
Ending balance: Loans | 3,676,092 | 3,150,103 | 3,412,551 |
Loans: Individually evaluated for impairment | 14,699 | 19,789 |  |
Loans: Acquired-impaired loans | 27,049 | 49,003 |  |
Loans: Collectively evaluated for impairment | 3,634,344 | 3,081,311 |  |
Commercial Real Estate [Member] | Originated Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 14,059 | 16,544 |  |
Allowance for loan losses: Charge-offs | (898) | (251) |  |
Allowance for loan losses: Recoveries | 185 | (3) |  |
Allowance for loan losses: Net provision for loan losses | 7,325 | (966) |  |
Allowance for loan losses: Ending balance | 20,671 | 15,324 |  |
Allowance for loan losses: Individually evaluated for impairment | 1,332 | 147 |  |
Allowance for loan losses: Collectively evaluated for impairment | 19,339 | 15,177 |  |
Ending balance: Loans | 3,504,803 | 2,492,351 | 3,220,509 |
Loans: Individually evaluated for impairment | 12,393 | 17,210 |  |
Loans: Collectively evaluated for impairment | 3,492,410 | 2,475,141 |  |
Commercial Real Estate [Member] | Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 33 | $ 477 |  |
Allowance for loan losses: Charge-offs |  |  |  |
Allowance for loan losses: Recoveries |  |  |  |
Allowance for loan losses: Net provision for loan losses | $ (26) | $ (223) |  |
Allowance for loan losses: Ending balance | 7 | 254 |  |
Allowance for loan losses: Individually evaluated for impairment | $ 7 | $ 254 |  |
Allowance for loan losses: Amounts related to acquired-impaired loans |  |  |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 156,285 | $ 629,975 | 176,460 |
Loans: Individually evaluated for impairment | 2,306 | 2,579 |  |
Loans: Acquired-impaired loans | 12,045 | 21,226 |  |
Loans: Collectively evaluated for impairment | 141,934 | 606,170 |  |
Commercial Real Estate [Member] | FDIC Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 1,807 | 4,061 |  |
Allowance for loan losses: Charge-offs | (29) | (2,368) |  |
Allowance for loan losses: Recoveries | 36 | 113 |  |
Allowance for loan losses: Net provision for loan losses | $ (303) | 202 |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable |  | 1,207 |  |
Allowance for loan losses: Ending balance | $ 1,511 | $ 3,215 |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | $ 1,511 | $ 3,215 |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 15,004 | $ 27,777 | 15,582 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 15,004 | $ 27,777 |  |
Loans: Collectively evaluated for impairment |  |  |  |
Residential Mortgages [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 25,353 | $ 28,660 |  |
Allowance for loan losses: Charge-offs | (175) | (1,302) |  |
Allowance for loan losses: Recoveries | 302 | 305 |  |
Allowance for loan losses: Net provision for loan losses | 1,365 | 543 |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable | (2,153) | (1,171) |  |
Allowance for loan losses: Ending balance | 24,692 | 27,035 |  |
Allowance for loan losses: Individually evaluated for impairment | 125 | 88 |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | 16,641 | 19,150 |  |
Allowance for loan losses: Collectively evaluated for impairment | 7,926 | 7,797 |  |
Ending balance: Loans | 2,000,967 | 1,913,885 | 2,049,524 |
Loans: Individually evaluated for impairment | 883 | 2,423 |  |
Loans: Acquired-impaired loans | 161,078 | 177,852 |  |
Loans: Collectively evaluated for impairment | 1,839,006 | 1,733,610 |  |
Residential Mortgages [Member] | Originated Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 7,690 | 8,051 |  |
Allowance for loan losses: Charge-offs | (175) | (1,209) |  |
Allowance for loan losses: Recoveries | 301 | 305 |  |
Allowance for loan losses: Net provision for loan losses | 235 | 738 |  |
Allowance for loan losses: Ending balance | 8,051 | 7,885 |  |
Allowance for loan losses: Individually evaluated for impairment | 125 | 88 |  |
Allowance for loan losses: Collectively evaluated for impairment | 7,926 | 7,797 |  |
Ending balance: Loans | 1,839,889 | 1,736,033 | 1,887,256 |
Loans: Individually evaluated for impairment | 883 | 2,423 |  |
Loans: Collectively evaluated for impairment | $ 1,839,006 | $ 1,733,610 |  |
Residential Mortgages [Member] | Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance |  |  |  |
Allowance for loan losses: Charge-offs |  |  |  |
Allowance for loan losses: Recoveries |  |  |  |
Allowance for loan losses: Net provision for loan losses |  |  |  |
Allowance for loan losses: Ending balance |  |  |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans |  |  |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 1,116 | $ 2,485 | 27 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 1,116 | $ 2,485 |  |
Loans: Collectively evaluated for impairment |  |  |  |
Residential Mortgages [Member] | FDIC Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 17,663 | $ 20,609 |  |
Allowance for loan losses: Charge-offs |  | $ (93) |  |
Allowance for loan losses: Recoveries | $ 1 |  |  |
Allowance for loan losses: Net provision for loan losses | 1,130 | $ (195) |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable | (2,153) | (1,171) |  |
Allowance for loan losses: Ending balance | $ 16,641 | $ 19,150 |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | $ 16,641 | $ 19,150 |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 159,962 | $ 175,367 | 162,241 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 159,962 | $ 175,367 |  |
Loans: Collectively evaluated for impairment |  |  |  |
Consumer [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 24,857 | $ 21,430 |  |
Allowance for loan losses: Charge-offs | (5,843) | (3,696) |  |
Allowance for loan losses: Recoveries | 1,533 | 1,296 |  |
Allowance for loan losses: Net provision for loan losses | 1,350 | 1,352 |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable | (19) | (410) |  |
Allowance for loan losses: Ending balance | 21,878 | 19,972 |  |
Allowance for loan losses: Individually evaluated for impairment | 16 | 3 |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | 1,388 | 3,392 |  |
Allowance for loan losses: Collectively evaluated for impairment | 20,474 | 16,577 |  |
Ending balance: Loans | 2,060,245 | 1,759,804 | 2,093,465 |
Loans: Individually evaluated for impairment | 58 | 120 |  |
Loans: Acquired-impaired loans | 12,177 | 16,994 |  |
Loans: Collectively evaluated for impairment | 2,048,010 | 1,742,690 |  |
Consumer [Member] | Originated Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 22,310 | 17,435 |  |
Allowance for loan losses: Charge-offs | (5,843) | (3,556) |  |
Allowance for loan losses: Recoveries | 1,494 | 1,280 |  |
Allowance for loan losses: Net provision for loan losses | 2,529 | 1,421 |  |
Allowance for loan losses: Ending balance | 20,490 | 16,580 |  |
Allowance for loan losses: Individually evaluated for impairment | 16 | 3 |  |
Allowance for loan losses: Collectively evaluated for impairment | 20,474 | 16,577 |  |
Ending balance: Loans | 2,048,068 | 1,742,810 | 2,080,626 |
Loans: Individually evaluated for impairment | 58 | 120 |  |
Loans: Collectively evaluated for impairment | $ 2,048,010 | $ 1,742,690 |  |
Consumer [Member] | Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance |  |  |  |
Allowance for loan losses: Charge-offs |  |  |  |
Allowance for loan losses: Recoveries |  |  |  |
Allowance for loan losses: Net provision for loan losses |  |  |  |
Allowance for loan losses: Ending balance |  |  |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans |  |  |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 20 | $ 25 | 20 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 20 | $ 25 |  |
Loans: Collectively evaluated for impairment |  |  |  |
Consumer [Member] | FDIC Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 2,547 | $ 3,995 |  |
Allowance for loan losses: Charge-offs |  | (140) |  |
Allowance for loan losses: Recoveries | $ 39 | 16 |  |
Allowance for loan losses: Net provision for loan losses | (1,179) | (69) |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable | (19) | (410) |  |
Allowance for loan losses: Ending balance | $ 1,388 | $ 3,392 |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | $ 1,388 | $ 3,392 |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 12,157 | $ 16,969 | 12,819 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 12,157 | $ 16,969 |  |
Loans: Collectively evaluated for impairment |  |  |  |
Construction and Land Development [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | $ 5,642 | $ 6,421 |  |
Allowance for loan losses: Charge-offs | (128) | (1,023) |  |
Allowance for loan losses: Recoveries | 640 | 1,649 |  |
Allowance for loan losses: Net provision for loan losses | $ (1,778) | (1,506) |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable |  | (34) |  |
Allowance for loan losses: Ending balance | $ 4,376 | 5,507 |  |
Allowance for loan losses: Individually evaluated for impairment | 185 | 71 |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | 523 | 1,098 |  |
Allowance for loan losses: Collectively evaluated for impairment | 3,668 | 4,338 |  |
Ending balance: Loans | 1,095,414 | 1,113,510 | 1,151,950 |
Loans: Individually evaluated for impairment | 14,072 | 4,381 |  |
Loans: Acquired-impaired loans | 8,930 | 24,283 |  |
Loans: Collectively evaluated for impairment | 1,072,412 | 1,084,846 |  |
Construction and Land Development [Member] | Originated Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 4,985 | 5,413 |  |
Allowance for loan losses: Charge-offs | (110) | (747) |  |
Allowance for loan losses: Recoveries | 605 | 1,243 |  |
Allowance for loan losses: Net provision for loan losses | (1,627) | (1,500) |  |
Allowance for loan losses: Ending balance | 3,853 | 4,409 |  |
Allowance for loan losses: Individually evaluated for impairment | 185 | 71 |  |
Allowance for loan losses: Collectively evaluated for impairment | 3,668 | 4,338 |  |
Ending balance: Loans | 1,086,382 | 1,087,449 | 1,139,743 |
Loans: Individually evaluated for impairment | 14,072 | 4,381 |  |
Loans: Collectively evaluated for impairment | $ 1,072,310 | $ 1,083,068 |  |
Construction and Land Development [Member] | Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance |  |  |  |
Allowance for loan losses: Charge-offs |  |  |  |
Allowance for loan losses: Recoveries |  |  |  |
Allowance for loan losses: Net provision for loan losses |  |  |  |
Allowance for loan losses: Ending balance |  |  |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans |  |  |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 2,250 | $ 14,579 | 5,080 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 2,148 | $ 12,801 |  |
Loans: Collectively evaluated for impairment | 102 | 1,778 |  |
Construction and Land Development [Member] | FDIC Acquired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for loan losses: Beginning balance | 657 | 1,008 |  |
Allowance for loan losses: Charge-offs | (18) | (276) |  |
Allowance for loan losses: Recoveries | 35 | 406 |  |
Allowance for loan losses: Net provision for loan losses | $ (151) | (6) |  |
Allowance for loan losses: Increase (decrease) in FDIC loss share receivable |  | (34) |  |
Allowance for loan losses: Ending balance | $ 523 | $ 1,098 |  |
Allowance for loan losses: Individually evaluated for impairment |  |  |  |
Allowance for loan losses: Amounts related to acquired-impaired loans | $ 523 | $ 1,098 |  |
Allowance for loan losses: Collectively evaluated for impairment |  |  |  |
Ending balance: Loans | $ 6,782 | $ 11,482 | $ 7,127 |
Loans: Individually evaluated for impairment |  |  |  |
Loans: Acquired-impaired loans | $ 6,782 | $ 11,482 |  |
Loans: Collectively evaluated for impairment |  |  |  |

X
- Definition Amount before allowance and deduction of deferred interest and fees, unamortized costs and premiums over and discounts from face amounts, of loans and leases held in portfolio, including loans and leases covered under loss sharing agreements. + References No definition available. + Details
Name: | hbhc_LoansAndLeasesReceivableGrossCarryingAmountCoveredAndNotCovered
Namespace Prefix: | hbhc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of loans and leases receivable acquired in an FDIC-assisted transaction. + References No definition available. + Details
Name: | hbhc_LoansAndLeasesReceivableGrossCarryingAmountFdicAcquired
Namespace Prefix: | hbhc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 + Details
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- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 + Details
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- Definition Change in carrying amount of the indemnification asset relating to loss sharing agreements with the Federal Deposit Insurance Corporation (FDIC). The change includes for example, but is not limited to, acquisitions, additional estimated losses, disposals, cash payments, accretion of discount and write-offs, net of recoveries. + References No definition available. + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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