Loans (Tables)

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Schedule of components of loans held for investment

The following table presents the composition of the loan portfolio as of the dates indicated:

	For the Years Ended December 31,
	2018			2017
	(dollars in thousands)
Business loans:
Commercial and industrial	$	1,364,423		$	1,086,659
Franchise	765,416			660,414
Commercial owner occupied	1,679,122			1,289,213
SBA	193,882			185,514
Agribusiness	138,519			116,066
Total business loans	4,141,362			3,337,866
Real estate loans:
Commercial non-owner occupied	2,003,174			1,243,115
Multi-family	1,535,289			794,384
One-to-four family	356,264			270,894
Construction	523,643			282,811
Farmland	150,502			145,393
Land	46,628			31,233
Total real estate loans	4,615,500			2,767,830
Consumer loans:
Consumer loans	89,424			92,931
Gross loans held for investment	8,846,286			6,198,627
Deferred loan origination fees and discounts, net	(9,468		)	(2,403		)
Loans held for investment	8,836,818			6,196,224
Allowance for loan losses	(36,072		)	(28,936		)
Loans held for investment, net	$	8,800,746		$	6,167,288
Loans held for sale, at lower of cost or fair value	$	5,719		$	23,426

Summary of Company's investment in purchased credit impaired loans

The carrying amount of those loans at December 31, 2018 and 2017 was as follows: 

	For the Years Ended December 31,
	2018		2017
	(dollars in thousands)
Business loans:
Commercial and industrial	$	10	$	3,310
Commercial owner occupied	632		1,262
SBA	1,265		1,802
Total business loans	1,907		6,374
Real estate loans:
Commercial non-owner occupied	275		1,650
One-to-four family	—		255
Construction	—		517
Land	—		83
Total real estate loans	275		2,505
Consumer loans:
Consumer loans	—		10
Total purchase credit impaired	$	2,182	$	8,889

Summary of accretable yield on purchased credit impaired

The following table summarizes the accretable yield on the purchased credit impaired for the years ended December 31, 2018, 2017 and 2016:

	For the Years Ended December 31,
	2018			2017			2016
	(dollars in thousands)
Balance at the beginning of period	$	3,019		$	3,747		$	2,726
Additions	1,430			3,102			788
Accretion	(532		)	(2,037		)	(1,354		)
Payoffs	(1,688		)	(2,125		)	165
Sales	(1,818		)	—			—
Reclassification from nonaccretable difference	—			332			1,422
Balance at the end of period	$	411		$	3,019		$	3,747

Summary of Company's investment in impaired loans

The following tables provide a summary of the Company’s investment in impaired loans as of and for the periods indicated:

	Recorded Investment		Unpaid Principal Balance		With Specific Allowance		Without Specific Allowance		Specific Allowance for Impaired Loans		Average Recorded Investment		Interest Income Recognized
	(dollars in thousands)
December 31, 2018
Business loans
Commercial and industrial	$	1,023	$	1,071	$	550	$	473	$	118	$	1,173	$	1
Franchise	189		190		—		189		—		119		—
Commercial owner occupied	599		628		—		599		—		1,549		—
SBA	2,739		7,598		488		2,251		466		1,814		—
Agribusiness	7,500		7,500		—		7,500		—		625		35
Real estate loans
Commercial non-owner occupied	—		—		—		—		—		538		—
Multi-family	—		—		—		—		—		500		—
One-to-four family	408		453		—		408		—		1,206		—
Land	—		—		—		—		—		5		—
Consumer loans
Consumer	—		—		—		—		—		33		—
Totals	$	12,458	$	17,440	$	1,038	$	11,420	$	584	$	7,562	$	36
December 31, 2017
Business loans
Commercial and industrial	$	1,160	$	1,585	$	—	$	1,160	$	—	$	441	$	—
Commercial owner occupied	97		98		97		—		55		153		—
SBA	1,201		4,329		—		1,201		—		434		—
Real estate loans
Commercial non-owner occupied	—		—		—		—		—		86		—
One-to-four family	817		849		—		817		—		166		—
Construction	—		—		—		—		—		1,017		—
Land	9		35		—		9		—		12		—
Totals	$	3,284	$	6,896	$	97	$	3,187	$	55	$	2,309	$	—
December 31, 2016
Business loans
Commercial and industrial	$	250	$	1,990	$	250	$	—	$	250	$	864	$	76
Franchise	—		—		—		—		—		1,016		68
Commercial owner occupied	436		847		—		436		—		505		37
SBA	316		3,865		—		316		—		331		23
Real estate loans
Commercial non-owner occupied	—		—		—		—		—		1,072		93
One-to-four family	124		291		—		124		—		226		18
Land	15		36		—		15		—		18		2
Totals	$	1,141	$	7,029	$	250	$	891	$	250	$	4,032	$	317

Summary of loan portfolio by the Company's internal risk grading system

The following tables stratify the loan portfolio by the Company’s internal risk grading system as well as certain other information concerning the credit quality of the loan portfolio, including loans held for sale, as of the periods indicated:

	Credit Risk Grades
	Pass		Special Mention		Substandard		Doubtful		Total Gross Loans
December 31, 2018	(dollars in thousands)
Business loans
Commercial and industrial	$	1,340,322	$	12,005	$	12,134	$	—	$	1,364,461
Franchise	760,795		4,431		190		—		765,416
Commercial owner occupied	1,660,994		1,580		16,548		—		1,679,122
SBA	189,006		2,289		6,906		—		198,201
Agribusiness	125,355		—		13,164		—		138,519
Real estate loans
Commercial non-owner occupied	1,998,118		731		5,687		—		2,004,536
Multi-family	1,530,567		4,060		662		—		1,535,289
One-to-four family	350,083		728		5,453		—		356,264
Construction	523,643		—		—		—		523,643
Farmland	150,381		—		121		—		150,502
Land	46,008		132		488		—		46,628
Consumer loans
Consumer loans	89,321		—		103		—		89,424
Totals	$	8,764,593	$	25,956	$	61,456	$	—	$	8,852,005
	Credit Risk Grades
	Pass		Special Mention		Substandard		Doubtful		Total Gross Loans
December 31, 2017	(dollars in thousands)
Business loans
Commercial and industrial	$	1,063,452	$	8,163	$	15,044	$	—	$	1,086,659
Franchise	660,415		—		—		—		660,415
Commercial owner occupied	1,273,380		654		21,180		—		1,295,214
SBA	199,468		1		3,469		—		202,938
Warehouse facilities	108,143		4,079		3,844		—		116,066
Real estate loans
Commercial non-owner occupied	1,242,045		—		1,070		—		1,243,115
Multi-family	794,156		—		228		—		794,384
One-to-four family	268,776		154		1,964		—		270,894
Construction	282,294		517		—		—		282,811
Farmland	144,234		44		1,115		—		145,393
Land	30,979		—		254		—		31,233
Consumer loans
Consumer loans	92,794		—		137		—		92,931
Totals	$	6,160,136	$	13,612	$	48,305	$	—	$	6,222,053

Schedule of credit quality of the loan portfolio

			Days Past Due
	Current		30-59		60-89		90+		Total Gross Loans		Non-accruing
December 31, 2018	(dollars in thousands)
Business loans
Commercial and industrial	$	1,362,017	$	309	$	1,204	$	931	$	1,364,461	$	931
Franchise	759,546		5,680		—		190		765,416		190
Commercial owner occupied	1,677,967		343		—		812		1,679,122		599
SBA	195,051		524		—		2,626		198,201		2,739
Agribusiness	138,519		—		—		—		138,519		—
Real estate loans
Commercial non-owner occupied	2,004,536		—		—		—		2,004,536		—
Multi-family	1,535,275		14		—		—		1,535,289		—
One-to-four family	356,219		30		9		6		356,264		398
Construction	523,643		—		—		—		523,643		—
Farmland	150,502		—		—		—		150,502		—
Land	46,628		—		—		—		46,628		—
Consumer loans
Consumer loans	89,249		146		29		—		89,424		—
Totals	$	8,839,152	$	7,046	$	1,242	$	4,565	$	8,852,005	$	4,857
			Days Past Due
	Current		30-59		60-89		90+		Total Gross Loans		Non-accruing
December 31, 2017	(dollars in thousands)
Business loans
Commercial and industrial	$	1,085,770	$	84	$	570	$	235	$	1,086,659	$	1,160
Franchise	660,415		—		—		—		660,415		—
Commercial owner occupied	1,291,254		3,474		486		—		1,295,214		97
SBA	200,821		177		—		1,940		202,938		1,201
Warehouse facilities	116,066		—		—		—		116,066		—
Real estate loans
Commercial non-owner occupied	1,243,115		—		—		—		1,243,115		—
Multi-family	792,603		1,781		—		—		794,384		—
One-to-four family	269,725		354		—		815		270,894		817
Construction	282,811		—		—		—		282,811		—
Farmland	145,393		—		—		—		145,393		—
Land	31,141		83		—		9		31,233		9
Consumer loans
Consumer loans	92,880		11		—		40		92,931		—
Totals	$	6,211,994	$	5,964	$	1,056	$	3,039	$	6,222,053	$	3,284