Loans, Leases and Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2015

Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]

Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table Text Block]



	As Adjusted
	Commercial and Industrial		Commercial Real Estate		Construction and Land Development		Residential Real Estate		Consumer		Total
	(in thousands)
Contractually required principal and interest payments:
PCI	$	17,899	$	3,127	$	—	$	2,509	$	—	$	23,535
Non-PCI	1,225,837		340,762		106,851		26,999		987		1,701,436
Total loans acquired	1,243,736		343,889		106,851		29,508		987		1,724,971
Cash flows expected to be collected:
PCI	10,066		1,570		—		2,088		—		13,724
Non-PCI	1,186,076		304,944		102,240		26,629		989		1,620,878
Total loans acquired	1,196,142		306,514		102,240		28,717		989		1,634,602
Fair value of loans acquired:
PCI	7,362		1,417		—		2,075		—		10,854
Non-PCI	1,076,742		229,306		99,080		23,023		925		1,429,076
Total loans acquired	$	1,084,104	$	230,723	$	99,080	$	25,098	$	925	$	1,439,930

Schedule of Held for Investment Loan Portfolio Composition of Loans, Leases and Allowance for Credit Losses

The composition of the Company’s loan portfolio is as follows:



	December 31,
	2015			2014
	(in thousands)
Loans, HFI
Commercial and industrial	$	5,114,257		$	3,326,708
Commercial real estate - non-owner occupied	2,283,536			2,052,566
Commercial real estate - owner occupied	2,083,285			1,732,888
Construction and land development	1,133,439			748,053
Residential real estate	322,939			299,402
Commercial leases	148,493			205,639
Consumer	26,905			33,009
Loans, net of deferred loan fees and costs	11,112,854			8,398,265
Allowance for credit losses	(119,068		)	(110,216		)
Total loans HFI	$	10,993,786		$	8,288,049

Contractual Aging of Loan Portfolio by Class of Loans Including Loans Held for Sale and Excluding Deferred Fees/Costs

The following table presents the contractual aging of the recorded investment in past due loans held for investment by class of loans:



	December 31, 2015
	Current		30-59 Days Past Due		60-89 Days Past Due		Over 90 days Past Due		Total Past Due		Total
	(in thousands)
Commercial real estate
Owner occupied	$	2,078,968	$	445	$	362	$	3,510	$	4,317	$	2,083,285
Non-owner occupied	2,099,274		2,481		—		2,822		5,303		2,104,577
Multi-family	178,959		—		—		—		—		178,959
Commercial and industrial
Commercial	5,066,197		26,358		14,124		7,578		48,060		5,114,257
Leases	145,905		—		—		2,588		2,588		148,493
Construction and land development
Construction	694,527		—		—		—		—		694,527
Land	438,495		—		—		417		417		438,912
Residential real estate	317,677		888		159		4,215		5,262		322,939
Consumer	26,587		12		91		215		318		26,905
Total loans	$	11,046,589	$	30,184	$	14,736	$	21,345	$	66,265	$	11,112,854



	December 31, 2014
	Current		30-59 Days Past Due		60-89 Days Past Due		Over 90 days Past Due		Total Past Due		Total
	(in thousands)
Commercial real estate
Owner occupied	$	1,730,164	$	1,406	$	180	$	1,138	$	2,724	$	1,732,888
Non-owner occupied	1,855,454		2,389		3,361		8,737		14,487		1,869,941
Multi-family	182,180		—		445		—		445		182,625
Commercial and industrial
Commercial	3,324,132		1,523		15		1,038		2,576		3,326,708
Leases	205,639		—		—		—		—		205,639
Construction and land development
Construction	388,399		—		—		—		—		388,399
Land	356,209		—		2,640		805		3,445		359,654
Residential real estate	292,065		2,347		205		4,785		7,337		299,402
Consumer	32,540		177		21		271		469		33,009
Total loans	$	8,366,782	$	7,842	$	6,867	$	16,774	$	31,483	$	8,398,265

Summary of Recorded Investment in Nonaccrual Loans and Loans Past Due 90 Days Still Accruing Interest by Loan Class

The following table presents the recorded investment in non-accrual loans and loans past due ninety days or more and still accruing interest by class of loans:



	December 31, 2015								December 31, 2014
	Non-accrual loans						Loans past due 90 days or more and still accruing		Non-accrual loans						Loans past due 90 days or more and still accruing
	Current		Past Due/ Delinquent		Total Non-accrual		Loans past due 90 days or more and still accruing		Current		Past Due/ Delinquent		Total Non-accrual		Loans past due 90 days or more and still accruing
	(in thousands)
Commercial real estate
Owner occupied	$	749	$	3,253	$	4,002	$	339	$	13,630	$	—	$	13,630	$	1,138
Non-owner occupied	11,851		2,822		14,673		—		30,226		8,601		38,827		2,171
Multi-family	—		—		—		—		—		—		—		—
Commercial and industrial
Commercial	3,263		15,026		18,289		2,671		2,621		496		3,117		703
Leases	—		2,588		2,588		—		373		—		373		—
Construction and land development
Construction	—		—		—		—		—		—		—		—
Land	1,892		417		2,309		—		2,686		2,640		5,326		805
Residential real estate	1,835		4,489		6,324		—		1,332		4,841		6,173		232
Consumer	—		196		196		18		25		188		213		83
Total	$	19,590	$	28,791	$	48,381	$	3,028	$	50,893	$	16,766	$	67,659	$	5,132

Loans by Risk Rating

The following tables present gross loans by risk rating:



	December 31, 2015
	Pass		Special Mention		Substandard		Doubtful		Loss		Total
	(in thousands)
Commercial real estate
Owner occupied	$	2,032,932	$	28,422	$	20,814	$	1,117	$	—	$	2,083,285
Non-owner occupied	2,054,428		14,867		35,282		—		—		2,104,577
Multi-family	178,959		—		—		—		—		178,959
Commercial and industrial
Commercial	4,962,930		76,283		74,294		750		—		5,114,257
Leases	140,531		4,580		794		2,588		—		148,493
Construction and land development
Construction	678,438		16,089		—		—		—		694,527
Land	420,819		362		17,731		—		—		438,912
Residential real estate	310,067		776		12,096		—		—		322,939
Consumer	26,438		209		258		—		—		26,905
Total	$	10,805,542	$	141,588	$	161,269	$	4,455	$	—	$	11,112,854



	December 31, 2015
	Pass		Special Mention		Substandard		Doubtful		Loss		Total
	(in thousands)
Current (up to 29 days past due)	$	10,799,558	$	140,932	$	104,232	$	1,867	$	—	$	11,046,589
Past due 30 - 59 days	1,907		271		28,006		—		—		30,184
Past due 60 - 89 days	4,077		385		10,274		—		—		14,736
Past due 90 days or more	—		—		18,757		2,588		—		21,345
Total	$	10,805,542	$	141,588	$	161,269	$	4,455	$	—	$	11,112,854



	December 31, 2014
	Pass		Special Mention		Substandard		Doubtful		Loss		Total
	(in thousands)
Commercial real estate
Owner occupied	$	1,664,270	$	28,072	$	39,222	$	1,324	$	—	$	1,732,888
Non-owner occupied	1,771,138		35,752		62,611		440		—		1,869,941
Multi-family	182,180		—		445		—		—		182,625
Commercial and industrial
Commercial	3,295,027		14,380		17,146		155		—		3,326,708
Leases	202,772		2,494		373		—		—		205,639
Construction and land development
Construction	383,677		4,241		481		—		—		388,399
Land	328,278		10,289		21,087		—		—		359,654
Residential real estate	284,052		2,044		13,306		—		—		299,402
Consumer	32,419		233		357		—		—		33,009
Total	$	8,143,813	$	97,505	$	155,028	$	1,919	$	—	$	8,398,265



	December 31, 2014
	Pass		Special Mention		Substandard		Doubtful		Loss		Total
	(in thousands)
Current (up to 29 days past due)	$	8,140,140	$	95,091	$	129,787	$	1,764	$	—	$	8,366,782
Past due 30 - 59 days	2,771		198		4,718		155		—		7,842
Past due 60 - 89 days	385		37		6,445		—		—		6,867
Past due 90 days or more	517		2,179		14,078		—		—		16,774
Total	$	8,143,813	$	97,505	$	155,028	$	1,919	$	—	$	8,398,265

Recorded Investment in Loans Classified as Impaired

The table below reflects the recorded investment in loans classified as impaired:



	December 31,
	2015			2014
	(in thousands)
Impaired loans with a specific valuation allowance under ASC 310 (1)	$	24,287		$	124,928
Impaired loans without a specific valuation allowance under ASC 310 (2)	104,587			41,822
Total impaired loans	$	128,874		$	166,750
Valuation allowance related to impaired loans (3)	$	(4,658	)	$	(10,765	)


(1)	Includes TDR loans of $3.0 million and $103.3 million at December 31, 2015 and 2014, respectively.


(2)	Includes TDR loans of $85.9 million and $35.0 million at December 31, 2015 and 2014, respectively.


(3)	Includes valuation allowance related to TDR loans of $0.3 million and $8.9 million at December 31, 2015 and 2014, respectively.

The following table presents the average investment in impaired loans and income recognized on impaired loans:



	Year Ended December 31,
	2015		2014		2013
	(in thousands)
Average balance on impaired loans	$	150,151	$	169,758	$	182,670
Interest income recognized on impaired loans	4,794		5,494		6,235
Interest recognized on non-accrual loans, cash basis	1,634		2,536		1,916

Impaired Loans by Loan Class

The following table presents impaired loans by class:



	December 31,
	2015		2014
	(in thousands)
Commercial real estate
Owner occupied	$	23,153	$	44,893
Non-owner occupied	41,081		66,324
Multi-family	—		—
Commercial and industrial
Commercial	26,513		13,749
Leases	2,896		373
Construction and land development
Construction	—		—
Land	18,322		21,748
Residential real estate	16,575		19,300
Consumer	334		363
Total	$	128,874	$	166,750

Average Investment in Impaired Loans by Loan Class

The following table presents average investment in impaired loans by loan class:



	Year Ended December 31,
	2015		2014		2013
	(in thousands)
Commercial real estate
Owner occupied	$	34,912	$	37,048	$	49,452
Non-owner occupied	56,360		68,821		56,110
Multi-family	—		—		89
Commercial and industrial
Commercial	17,534		16,168		15,023
Leases	2,948		410		727
Construction and land development
Construction	—		—		—
Land	19,561		21,580		27,326
Residential real estate	18,453		25,223		33,339
Consumer	383		508		604
Total	$	150,151	$	169,758	$	182,670

Interest Income on Impaired Loans by Loan Class

The following table presents interest income on impaired loans by class:



	Year Ended December 31,
	2015		2014		2013
	(in thousands)
Commercial real estate
Owner occupied	$	1,575	$	1,550	$	1,726
Non-owner occupied	1,560		1,484		2,043
Multi-family	—		1		—
Commercial and industrial
Commercial	288		745		1,087
Leases	—		—		—
Construction and land development
Construction	—		—		—
Land	785		1,021		1,288
Residential real estate	579		646		62
Consumer	7		47		29
Total	$	4,794	$	5,494	$	6,235

Tabular Disclosure of Nonperforming Assets

The following table summarizes nonperforming assets:



	December 31,
	2015		2014
	(in thousands)
Non-accrual loans (1)	$	48,381	$	67,659
Loans past due 90 days or more on accrual status	3,028		5,132
Troubled debt restructured loans (2)	70,707		84,720
Total nonperforming loans	122,116		157,511
Other assets acquired through foreclosure, net	43,942		57,150
Total nonperforming assets	$	166,058	$	214,661


(1)	Includes non-accrual TDR loans of $18.2 million and $53.6 million at December 31, 2015 and 2014, respectively.


(2)	Includes accruing TDR loans only.

Accretable Yield Table

Changes in the accretable yield for loans acquired with deteriorated credit quality in the Centennial, Western Liberty, and Bridge acquisitions are as follows:



	Year Ended December 31,
	2015			2014			2013
	(in thousands)
Balance, at beginning of period	$	19,156		$	28,164		$	7,072
Additions due to acquisition of Bridge	857			—			—
Measurement period adjustments	38			—			22,318
Reclassifications from non-accretable to accretable yield (1)	1,747			6,052			9,817
Accretion to interest income	(3,996		)	(7,185		)	(7,182		)
Reversal of fair value adjustments upon disposition of loans	(1,877		)	(7,875		)	(3,861		)
Balance, at end of period	$	15,925		$	19,156		$	28,164


(1)	The primary drivers of reclassification from non-accretable to accretable yield resulted from changes in estimated cash flows.

Allowances for Credit Losses

The following table summarizes the changes in the allowance for credit losses by portfolio type:



	Year Ended December 31,
	Construction and Land Development			Commercial Real Estate			Residential Real Estate			Commercial and Industrial			Consumer			Total
	(in thousands)
2015
Beginning Balance	$	18,558		$	28,783		$	7,456		$	54,566		$	853		$	110,216
Charge-offs	—			—			820			5,550			127			6,497
Recoveries	(1,872		)	(4,139		)	(2,181		)	(3,754		)	(203		)	(12,149		)
Provision	(1,454		)	(9,762		)	(3,539		)	18,411			(456		)	3,200
Ending balance	$	18,976		$	23,160		$	5,278		$	71,181		$	473		$	119,068
2014
Beginning Balance	$	14,519		$	32,064		$	11,640		$	39,657		$	2,170		$	100,050
Charge-offs	87			964			1,728			4,370			513			7,662
Recoveries	(2,160		)	(3,859		)	(1,896		)	(4,728		)	(459		)	(13,102		)
Provision	1,966			(6,176		)	(4,352		)	14,551			(1,263		)	4,726
Ending balance	$	18,558		$	28,783		$	7,456		$	54,566		$	853		$	110,216
2013
Beginning Balance	$	10,554		$	34,982		$	15,237		$	32,860		$	1,794		$	95,427
Charge-offs	1,538			8,648			5,922			4,000			1,371			21,479
Recoveries	(2,060		)	(2,758		)	(2,097		)	(5,037		)	(930		)	(12,882		)
Provision	3,443			2,972			228			5,760			817			13,220
Ending balance	$	14,519		$	32,064		$	11,640		$	39,657		$	2,170		$	100,050

The following table presents impairment method information related to loans and allowance for credit losses by loan portfolio segment:



	Commercial Real Estate-Owner Occupied		Commercial Real Estate-Non-Owner Occupied		Commercial and Industrial		Residential Real Estate		Construction and Land Development		Commercial Leases		Consumer		Total Loans
	(in thousands)
Loans as of December 31, 2015:
Recorded Investment:
Impaired loans with an allowance recorded	$	2,778	$	2,344	$	18,230	$	914	$	—	$	—	$	21	$	24,287
Impaired loans with no allowance recorded	20,375		38,737		8,283		15,661		18,322		2,896		313		104,587
Total loans individually evaluated for impairment	23,153		41,081		26,513		16,575		18,322		2,896		334		128,874
Loans collectively evaluated for impairment	2,044,934		2,180,250		5,085,299		303,372		1,115,117		145,597		26,571		10,901,140
Loans acquired with deteriorated credit quality	15,198		62,205		2,445		2,992		—		—		—		82,840
Total recorded investment	$	2,083,285	$	2,283,536	$	5,114,257	$	322,939	$	1,133,439	$	148,493	$	26,905	$	11,112,854
Unpaid Principal Balance
Impaired loans with an allowance recorded	$	2,778	$	2,344	$	19,233	$	969	$	—	$	—	$	21	$	25,345
Impaired loans with no allowance recorded	63,709		61,692		71,773		44,142		82,800		5,229		3,923		333,268
Total loans individually evaluated for impairment	66,487		64,036		91,006		45,111		82,800		5,229		3,944		358,613
Loans collectively evaluated for impairment	2,044,934		2,180,250		5,085,299		303,372		1,115,117		145,597		26,571		10,901,140
Loans acquired with deteriorated credit quality	20,227		88,181		7,820		3,536		—		—		—		119,764
Total unpaid principal balance	$	2,131,648	$	2,332,467	$	5,184,125	$	352,019	$	1,197,917	$	150,826	$	30,515	$	11,379,517
Related Allowance for Credit Losses
Impaired loans with an allowance recorded	$	858	$	11	$	3,518	$	270	$	—	$	—	$	1	$	4,658
Impaired loans with no allowance recorded	—		—		—		—		—		—		—		—
Total loans individually evaluated for impairment	858		11		3,518		270		—		—		1		4,658
Loans collectively evaluated for impairment	10,953		11,302		65,806		5,008		18,976		1,857		472		114,374
Loans acquired with deteriorated credit quality	—		36		—		—		—		—		—		36
Total allowance for credit losses	$	11,811	$	11,349	$	69,324	$	5,278	$	18,976	$	1,857	$	473	$	119,068



	Commercial Real Estate-Owner Occupied		Commercial Real Estate-Non-Owner Occupied		Commercial and Industrial		Residential Real Estate		Construction and Land Development		Commercial Leases		Consumer		Total Loans
	(in thousands)
Loans as of December 31, 2014:
Recorded Investment:
Impaired loans with an allowance recorded	$	28,024	$	44,937	$	11,399	$	19,300	$	21,052	$	41	$	175	$	124,928
Impaired loans with no allowance recorded	16,869		21,387		2,350		—		696		332		188		41,822
Total loans individually evaluated for impairment	44,893		66,324		13,749		19,300		21,748		373		363		166,750
Loans collectively evaluated for impairment	1,670,083		1,910,420		3,312,629		277,692		726,305		205,266		32,646		8,135,041
Loans acquired with deteriorated credit quality	17,912		75,822		330		2,410		—		—		—		96,474
Total recorded investment	$	1,732,888	$	2,052,566	$	3,326,708	$	299,402	$	748,053	$	205,639	$	33,009	$	8,398,265
Unpaid Principal Balance
Impaired loans with an allowance recorded	$	31,292	$	45,853	$	11,829	$	24,420	$	21,169	$	41	$	187	$	134,791
Impaired loans with no allowance recorded	17,010		21,550		4,104		—		885		483		188		44,220
Total loans individually evaluated for impairment	48,302		67,403		15,933		24,420		22,054		524		375		179,011
Loans collectively evaluated for impairment	1,670,083		1,910,420		3,312,629		277,692		726,305		205,266		32,646		8,135,041
Loans acquired with deteriorated credit quality	24,273		108,935		1,150		3,439		—		—		—		137,797
Total unpaid principal balance	$	1,742,658	$	2,086,758	$	3,329,712	$	305,551	$	748,359	$	205,790	$	33,021	$	8,451,849
Related Allowance for Credit Losses
Impaired loans with an allowance recorded	$	2,082	$	2,537	$	1,926	$	1,052	$	3,112	$	39	$	17	$	10,765
Impaired loans with no allowance recorded	—		—		—		—		—		—		—		—
Total loans individually evaluated for impairment	2,082		2,537		1,926		1,052		3,112		39		17		10,765
Loans collectively evaluated for impairment	10,198		13,734		49,809		6,404		15,446		2,761		836		99,188
Loans acquired with deteriorated credit quality	174		58		31		—		—		—		—		263
Total allowance for credit losses	$	12,454	$	16,329	$	51,766	$	7,456	$	18,558	$	2,800	$	853	$	110,216

Troubled Debt Restructured Loans by Loan Class

The following table presents information on the financial effects of TDR loans by class for the periods presented:



	Year Ended December 31, 2015
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Forgiven Principal Balance		Lost Interest Income		Post-Modification Outstanding Recorded Investment		Waived Fees and Other Expenses
	(dollars in thousands)
Commercial real estate
Owner occupied	—	$	—	$	—	$	—	$	—	$	—
Non-owner occupied	1	193		—		—		193		—
Multi-family	—	—		—		—		—		—
Commercial and industrial
Commercial	1	256		—		—		256		—
Leases	—	—		—		—		—		—
Construction and land development
Construction	—	—		—		—		—		—
Land	—	—		—		—		—		—
Residential real estate	1	81		—		3		78		4
Consumer	—	—		—		—		—		—
Total	3	$	530	$	—	$	3	$	527	$	4



	Year Ended December 31, 2014
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Forgiven Principal Balance		Lost Interest Income		Post-Modification Outstanding Recorded Investment		Waived Fees and Other Expenses
	(dollars in thousands)
Commercial real estate
Owner occupied	6	$	14,646	$	378	$	257	$	14,011	$	33
Non-owner occupied	5	16,976		—		60		16,916		15
Multi-family	—	—		—		—		—		—
Commercial and industrial
Commercial	6	2,655		—		—		2,655		4
Leases	—	—		—		—		—		—
Construction and land development
Construction	—	—		—		—		—		—
Land	2	2,687		—		47		2,640		—
Residential real estate	5	1,966		447		70		1,449		15
Consumer	—	—		—		—		—		—
Total	24	$	38,930	$	825	$	434	$	37,671	$	67



	Year Ended December 31, 2013
	Number of Loans	Pre-Modification Outstanding Recorded Investment		Forgiven Principal Balance		Lost Interest Income		Post-Modification Outstanding Recorded Investment		Waived Fees and Other Expenses
	(dollars in thousands)
Commercial real estate
Owner occupied	8	$	3,681	$	—	$	54	$	3,627	$	28
Non-owner occupied	5	10,735		1,030		63		9,642		14
Multi-family	—	—		—		—		—		—
Commercial and industrial
Commercial	13	4,809		—		19		4,790		11
Leases	—	—		—		—		—		—
Construction and land development
Construction	—	—		—		—		—		—
Land	2	286		—		—		286		1
Residential real estate	13	5,434		267		887		4,280		24
Consumer	2	74		—		5		69		3
Total	43	$	25,019	$	1,297	$	1,028	$	22,694	$	81

Troubled Debt Restructured Loans by Class for Which There was a Payment Default

The following table presents TDR loans by class for which there was a payment default during the period:



	Year Ended December 31,
	2015			2014			2013
	Number of Loans	Recorded Investment		Number of Loans	Recorded Investment		Number of Loans	Recorded Investment
	(dollars in thousands)
Commercial real estate
Owner occupied	—	$	—	2	$	395	3	$	2,506
Non-owner occupied	—	—		2	984		3	1,490
Multi-family	—	—		—	—		—	—
Commercial and industrial
Commercial	—	—		3	369		3	1,089
Leases	—	—		—	—		—	—
Construction and land development
Construction	1	137		—	—		—	—
Land	—	—		—	—		2	330
Residential real estate	3	1,047		1	202		4	955
Consumer	—	—		—	—		—	—
Total	4	$	1,184	8	$	1,950	15	$	6,370