XML 135 R120.htm IDEA: XBRL DOCUMENT v3.8.0.1
Selected Quarterly Financial Data (Unaudited) - Schedule of Quarterly Financial Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]                      
Interest income $ 97,619 $ 98,285 $ 93,852 $ 83,094 $ 83,609 $ 84,212 $ 81,321 $ 73,398 $ 372,850 $ 322,539 $ 249,850
Interest expense 29,319 30,266 25,246 20,676 19,481 19,627 18,163 15,771 105,507 73,042 53,560
Net interest income 68,300 68,019 68,606 62,418 64,128 64,585 63,158 57,627 267,343 249,497 196,290
Provision for loan losses 831 2,352 535 3,050 187 88 786 1,980 6,768 3,041 20,566
Non-interest income 19,740 18,026 18,391 22,754 15,131 27,486 8,257 5,494 78,910 56,370 27,717
Non-interest expenses 54,788 61,040 50,413 49,366 49,924 56,218 38,183 33,905 215,606 178,231 114,946
Income before income taxes 32,421 22,653 36,049 32,756 29,148 35,765 32,446 27,236      
Provision for income taxes 10,806 14,899 12,327 7,009 9,320 14,558 12,963 9,052 45,042 45,893 29,912
Net income from continuing operations 21,615 7,754 23,722 25,747 19,828 21,207 19,483 18,184 78,837 78,702 58,583
Preferred stock dividends 3,615 3,615 3,615 3,615 3,615 2,552 2,062 1,286 14,459 9,515 2,493
Net income available to common shareholders $ 18,000 $ 4,139 $ 20,107 $ 22,132 $ 16,213 $ 18,655 $ 17,421 $ 16,898 $ 64,378 $ 69,187 $ 56,090
Earnings per common share:                      
Basic earnings per share (usd per share) $ 0.58 $ 0.13 $ 0.66 $ 0.73 $ 0.56 $ 0.68 $ 0.64 $ 0.63 $ 2.10 $ 2.51 $ 2.09
Diluted earnings per share (usd per share) $ 0.55 $ 0.13 $ 0.62 $ 0.67 $ 0.51 $ 0.63 $ 0.59 $ 0.58 $ 1.97 $ 2.31 $ 1.96