XML 50 R38.htm IDEA: XBRL DOCUMENT v3.4.0.3
Loans and Allowance for Loan Losses - Schedule of Loans Outstanding by Category (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 4,275,112 $ 4,232,048
Percent 100.00% 100.00%
Taxable [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 17,628 $ 17,605
Percent 0.41% 0.42%
Tax-exempt [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 36,177 $ 33,575
Percent 0.85% 0.79%
Commercial and Industrial [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 790,156 $ 795,803
Percent 18.48% 18.80%
Oil & Gas Production And Equipment [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 86,524 $ 87,304
Percent 2.02% 2.06%
Agriculture [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 149,442 $ 150,620
Percent 3.50% 3.56%
Construction [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 401,330 $ 403,664
Percent 9.39% 9.54%
Farmland [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 189,934 $ 184,707
Percent 4.44% 4.36%
One to Four Family Residences [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 825,357 $ 821,251
Percent 19.31% 19.41%
Multifamily Residential Properties [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 62,189 $ 65,477
Percent 1.45% 1.55%
Commercial [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 1,406,204 $ 1,356,430
Percent 32.89% 32.05%
Consumer [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 276,463 $ 283,636
Percent 6.47% 6.70%
Other (Not Classified Above) [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 33,708 $ 31,976
Percent 0.79% 0.76%