Loans and Allowance for Loan Losses - Allowance for Loan Losses by Portfolio Segment and Related Recorded Investment in Loans (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			$ 133,626
Ending balance: Covered Loans	303,825		303,825		358,666
Ending balance: Loans	12,884,056		12,884,056		12,324,817
Net provision for loan losses	6,691	8,257	14,654	17,835
Increase in FDIC loss share receivable			(7,875)	2,877
Loans and Leases receivable, Allowance, Ending Balance	128,672		128,672
Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			133,626	136,171
Charge-offs			(21,367)	(29,418)
Recoveries			9,634	10,505
Net provision for loan losses			14,654	17,835
Increase in FDIC loss share receivable			(7,875)	2,876
Loans and Leases receivable, Allowance, Ending Balance	128,672	137,969	128,672	137,969
Ending balance: Individually evaluated for impairment	1,824	2,384	1,824	2,384
Ending balance: Amounts related to acquired-impaired loans	41,153	61,200	41,153	61,200
Ending balance: Collectively evaluated for impairment	85,695	74,385	85,695	74,385
Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	12,884,056	11,681,497	12,884,056	11,681,497
Ending balance: Individually evaluated for impairment	32,173	65,206	32,173	65,206
Ending balance: Acquired-impaired loans	373,808	525,867	373,808	525,867
Ending balance: Collectively evaluated for impairment	12,478,075	11,090,424	12,478,075	11,090,424
Commercial non-real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	13,836		13,836		23,390
Ending balance: Loans	5,393,691		5,393,691		5,064,224
Commercial non-real estate [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			37,017	23,725
Charge-offs			(3,728)	(4,881)
Recoveries			1,862	2,428
Net provision for loan losses			12,015	11,175
Increase in FDIC loss share receivable			(1,099)	233
Loans and Leases receivable, Allowance, Ending Balance	46,067	32,680	46,067	32,680
Ending balance: Individually evaluated for impairment	705	619	705	619
Ending balance: Amounts related to acquired-impaired loans	1,548	2,208	1,548	2,208
Ending balance: Collectively evaluated for impairment	43,814	29,853	43,814	29,853
Commercial non-real estate [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	5,393,691	4,653,342	5,393,691	4,653,342
Ending balance: Individually evaluated for impairment	8,722	16,470	8,722	16,470
Ending balance: Acquired-impaired loans	31,246	47,246	31,246	47,246
Ending balance: Collectively evaluated for impairment	5,353,723	4,589,626	5,353,723	4,589,626
Construction and land development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	17,199		17,199		20,229
Ending balance: Loans	1,040,656		1,040,656		915,541
Construction and land development [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			8,845	17,038
Charge-offs			(1,665)	(8,686)
Recoveries			1,960	1,521
Net provision for loan losses			836	1,285
Increase in FDIC loss share receivable			(1,302)	37
Loans and Leases receivable, Allowance, Ending Balance	8,674	11,195	8,674	11,195
Ending balance: Individually evaluated for impairment	283	8	283	8
Ending balance: Amounts related to acquired-impaired loans	1,552	3,456	1,552	3,456
Ending balance: Collectively evaluated for impairment	6,839	7,731	6,839	7,731
Construction and land development [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	1,040,656	966,499	1,040,656	966,499
Ending balance: Individually evaluated for impairment	7,441	787	7,441	787
Ending balance: Acquired-impaired loans	36,175	41,769	36,175	41,769
Ending balance: Collectively evaluated for impairment	997,040	923,943	997,040	923,943
Commercial real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	46,611		46,611		53,165
Ending balance: Loans	3,056,263		3,056,263		3,042,841
Commercial real estate [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			31,612	36,392
Charge-offs			(5,395)	(4,992)
Recoveries			2,428	2,390
Net provision for loan losses			(4,400)	(4,572)
Increase in FDIC loss share receivable			225	752
Loans and Leases receivable, Allowance, Ending Balance	24,470	29,970	24,470	29,970
Ending balance: Individually evaluated for impairment	304	1,745	304	1,745
Ending balance: Amounts related to acquired-impaired loans	8,533	10,649	8,533	10,649
Ending balance: Collectively evaluated for impairment	15,633	17,576	15,633	17,576
Commercial real estate [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	3,056,263	2,872,254	3,056,263	2,872,254
Ending balance: Individually evaluated for impairment	13,478	42,421	13,478	42,421
Ending balance: Acquired-impaired loans	74,604	121,563	74,604	121,563
Ending balance: Collectively evaluated for impairment	2,968,181	2,708,270	2,968,181	2,708,270
Residential mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	189,570		189,570		209,018
Ending balance: Loans	1,771,271		1,771,271		1,720,614
Residential mortgages [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			34,881	36,877
Charge-offs			(1,827)	(1,418)
Recoveries			382	897
Net provision for loan losses			613	954
Increase in FDIC loss share receivable			(3,442)	625
Loans and Leases receivable, Allowance, Ending Balance	30,607	37,935	30,607	37,935
Ending balance: Individually evaluated for impairment	532	2	532	2
Ending balance: Amounts related to acquired-impaired loans	23,663	31,217	23,663	31,217
Ending balance: Collectively evaluated for impairment	6,412	6,716	6,412	6,716
Residential mortgages [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	1,771,271	1,616,093	1,771,271	1,616,093
Ending balance: Individually evaluated for impairment	2,532	1,375	2,532	1,375
Ending balance: Acquired-impaired loans	194,117	244,409	194,117	244,409
Ending balance: Collectively evaluated for impairment	1,574,622	1,370,309	1,574,622	1,370,309
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	36,609		36,609		52,864
Ending balance: Loans	1,622,175		1,622,175		1,581,597
Consumer [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			21,271	22,139
Charge-offs			(8,752)	(9,441)
Recoveries			3,002	3,269
Net provision for loan losses			5,590	8,993
Increase in FDIC loss share receivable			(2,257)	1,229
Loans and Leases receivable, Allowance, Ending Balance	18,854	26,189	18,854	26,189
Ending balance: Individually evaluated for impairment		10		10
Ending balance: Amounts related to acquired-impaired loans	5,857	13,670	5,857	13,670
Ending balance: Collectively evaluated for impairment	12,997	12,509	12,997	12,509
Consumer [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	1,622,175	1,573,309	1,622,175	1,573,309
Ending balance: Individually evaluated for impairment		4,153		4,153
Ending balance: Acquired-impaired loans	37,666	70,880	37,666	70,880
Ending balance: Collectively evaluated for impairment	1,584,509	1,498,276	1,584,509	1,498,276
Covered Loans [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			53,094	56,609
Charge-offs			(6,576)	(6,730)
Recoveries			2,885	1,482
Net provision for loan losses			(375)	6,963
Increase in FDIC loss share receivable			(7,875)	2,876
Loans and Leases receivable, Allowance, Ending Balance	41,153	61,200	41,153	61,200
Ending balance: Individually evaluated for impairment
Ending balance: Amounts related to acquired-impaired loans	41,153	61,200	41,153	61,200
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	303,825	430,711	303,825	430,711
Ending balance: Individually evaluated for impairment
Ending balance: Acquired-impaired loans	303,825	430,711	303,825	430,711
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Commercial non-real estate [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			2,323	2,162
Charge-offs			(70)	(681)
Recoveries			451	90
Net provision for loan losses			(57)	404
Increase in FDIC loss share receivable			(1,099)	233
Loans and Leases receivable, Allowance, Ending Balance	1,548	2,208	1,548	2,208
Ending balance: Individually evaluated for impairment
Ending balance: Amounts related to acquired-impaired loans	1,548	2,208	1,548	2,208
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Commercial non-real estate [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	13,836	26,418	13,836	26,418
Ending balance: Individually evaluated for impairment
Ending balance: Acquired-impaired loans	13,836	26,418	13,836	26,418
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Construction and land development [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			2,655	5,623
Charge-offs			(624)	(2,321)
Recoveries			896	484
Net provision for loan losses			(73)	(367)
Increase in FDIC loss share receivable			(1,302)	37
Loans and Leases receivable, Allowance, Ending Balance	1,552	3,456	1,552	3,456
Ending balance: Individually evaluated for impairment
Ending balance: Amounts related to acquired-impaired loans	1,552	3,456	1,552	3,456
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Construction and land development [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	17,199	26,239	17,199	26,239
Ending balance: Individually evaluated for impairment
Ending balance: Acquired-impaired loans	17,199	26,239	17,199	26,239
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Commercial real estate [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			10,929	9,433
Charge-offs			(4,022)	(2,121)
Recoveries			1,371	878
Net provision for loan losses			30	1,707
Increase in FDIC loss share receivable			225	752
Loans and Leases receivable, Allowance, Ending Balance	8,533	10,649	8,533	10,649
Ending balance: Individually evaluated for impairment
Ending balance: Amounts related to acquired-impaired loans	8,533	10,649	8,533	10,649
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Commercial real estate [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	46,611	72,345	46,611	72,345
Ending balance: Individually evaluated for impairment
Ending balance: Acquired-impaired loans	46,611	72,345	46,611	72,345
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Residential mortgages [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			27,989	30,471
Charge-offs			(730)	(516)
Recoveries			19	2
Net provision for loan losses			(173)	635
Increase in FDIC loss share receivable			(3,442)	625
Loans and Leases receivable, Allowance, Ending Balance	23,663	31,217	23,663	31,217
Ending balance: Individually evaluated for impairment
Ending balance: Amounts related to acquired-impaired loans	23,663	31,217	23,663	31,217
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Residential mortgages [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	189,570	235,216	189,570	235,216
Ending balance: Individually evaluated for impairment
Ending balance: Acquired-impaired loans	189,570	235,216	189,570	235,216
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Consumer [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases receivable, Allowance, Beginning Balance			9,198	8,920
Charge-offs			(1,130)	(1,091)
Recoveries			148	28
Net provision for loan losses			(102)	4,584
Increase in FDIC loss share receivable			(2,257)	1,229
Loans and Leases receivable, Allowance, Ending Balance	5,857	13,670	5,857	13,670
Ending balance: Individually evaluated for impairment
Ending balance: Amounts related to acquired-impaired loans	5,857	13,670	5,857	13,670
Ending balance: Collectively evaluated for impairment
Covered Loans [Member] | Consumer [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Covered Loans	36,609	70,493	36,609	70,493
Ending balance: Individually evaluated for impairment
Ending balance: Acquired-impaired loans	36,609	70,493	36,609	70,493
Ending balance: Collectively evaluated for impairment
Originated loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	10,658,452		10,658,452		9,494,132
Originated loans [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			78,885	78,774
Charge-offs			(14,791)	(22,688)
Recoveries			6,749	9,023
Net provision for loan losses			7,729	11,290
Loans and Leases receivable, Allowance, Ending Balance	78,572	76,399	78,572	76,399
Ending balance: Individually evaluated for impairment	1,547	2,014	1,547	2,014
Ending balance: Collectively evaluated for impairment	77,025	74,385	77,025	74,385
Originated loans [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	10,658,452	8,253,755	10,658,452	8,253,755
Ending balance: Individually evaluated for impairment	27,197	54,697	27,197	54,697
Ending balance: Collectively evaluated for impairment	10,631,255	8,199,058	10,631,255	8,199,058
Originated loans [Member] | Commercial non-real estate [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			33,091	20,775
Charge-offs			(3,658)	(4,200)
Recoveries			1,411	2,338
Net provision for loan losses			5,937	11,514
Loans and Leases receivable, Allowance, Ending Balance	36,781	30,427	36,781	30,427
Ending balance: Individually evaluated for impairment	640	574	640	574
Ending balance: Collectively evaluated for impairment	36,141	29,853	36,141	29,853
Originated loans [Member] | Commercial non-real estate [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	4,610,696	3,564,008	4,610,696	3,564,008
Ending balance: Individually evaluated for impairment	6,765	9,986	6,765	9,986
Ending balance: Collectively evaluated for impairment	4,603,931	3,554,022	4,603,931	3,554,022
Originated loans [Member] | Construction and land development [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			6,180	11,415
Charge-offs			(1,041)	(6,365)
Recoveries			1,064	1,037
Net provision for loan losses			699	1,644
Loans and Leases receivable, Allowance, Ending Balance	6,902	7,731	6,902	7,731
Ending balance: Individually evaluated for impairment	259		259
Ending balance: Collectively evaluated for impairment	6,643	7,731	6,643	7,731
Originated loans [Member] | Construction and land development [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	903,610	722,649	903,610	722,649
Ending balance: Individually evaluated for impairment	6,702		6,702
Ending balance: Collectively evaluated for impairment	896,908	722,649	896,908	722,649
Originated loans [Member] | Commercial real estate [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			20,649	26,959
Charge-offs			(1,373)	(2,871)
Recoveries			1,057	1,512
Net provision for loan losses			(5,060)	(6,596)
Loans and Leases receivable, Allowance, Ending Balance	15,273	19,004	15,273	19,004
Ending balance: Individually evaluated for impairment	116	1,428	116	1,428
Ending balance: Collectively evaluated for impairment	15,157	17,576	15,157	17,576
Originated loans [Member] | Commercial real estate [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	2,173,006	1,638,409	2,173,006	1,638,409
Ending balance: Individually evaluated for impairment	11,198	39,694	11,198	39,694
Ending balance: Collectively evaluated for impairment	2,161,808	1,598,715	2,161,808	1,598,715
Originated loans [Member] | Residential mortgages [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			6,892	6,406
Charge-offs			(1,097)	(902)
Recoveries			363	895
Net provision for loan losses			772	319
Loans and Leases receivable, Allowance, Ending Balance	6,930	6,718	6,930	6,718
Ending balance: Individually evaluated for impairment	532	2	532	2
Ending balance: Collectively evaluated for impairment	6,398	6,716	6,398	6,716
Originated loans [Member] | Residential mortgages [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	1,469,977	988,595	1,469,977	988,595
Ending balance: Individually evaluated for impairment	2,532	864	2,532	864
Ending balance: Collectively evaluated for impairment	1,467,445	987,731	1,467,445	987,731
Originated loans [Member] | Consumer [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			12,073	13,219
Charge-offs			(7,622)	(8,350)
Recoveries			2,854	3,241
Net provision for loan losses			5,381	4,409
Loans and Leases receivable, Allowance, Ending Balance	12,686	12,519	12,686	12,519
Ending balance: Individually evaluated for impairment		10		10
Ending balance: Collectively evaluated for impairment	12,686	12,509	12,686	12,509
Originated loans [Member] | Consumer [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	1,501,163	1,340,094	1,501,163	1,340,094
Ending balance: Individually evaluated for impairment		4,153		4,153
Ending balance: Collectively evaluated for impairment	1,501,163	1,335,941	1,501,163	1,335,941
Acquired loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	1,921,779		1,921,779		2,472,019
Acquired loans [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			1,647	788
Charge-offs
Recoveries
Net provision for loan losses			7,300	(418)
Loans and Leases receivable, Allowance, Ending Balance	8,947	370	8,947	370
Ending balance: Individually evaluated for impairment	277	370	277	370
Ending balance: Amounts related to acquired-impaired loans
Ending balance: Collectively evaluated for impairment	8,670		8,670
Acquired loans [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	1,921,779	2,997,031	1,921,779	2,997,031
Ending balance: Individually evaluated for impairment	4,976	10,509	4,976	10,509
Ending balance: Acquired-impaired loans	69,983	95,156	69,983	95,156
Ending balance: Collectively evaluated for impairment	1,846,820	2,891,366	1,846,820	2,891,366
Acquired loans [Member] | Commercial non-real estate [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			1,603	788
Charge-offs
Recoveries
Net provision for loan losses			6,135	(743)
Loans and Leases receivable, Allowance, Ending Balance	7,738	45	7,738	45
Ending balance: Individually evaluated for impairment	65	45	65	45
Ending balance: Amounts related to acquired-impaired loans
Ending balance: Collectively evaluated for impairment	7,673		7,673
Acquired loans [Member] | Commercial non-real estate [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	769,159	1,062,916	769,159	1,062,916
Ending balance: Individually evaluated for impairment	1,957	6,484	1,957	6,484
Ending balance: Acquired-impaired loans	17,410	20,828	17,410	20,828
Ending balance: Collectively evaluated for impairment	749,792	1,035,604	749,792	1,035,604
Acquired loans [Member] | Construction and land development [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			10
Charge-offs
Recoveries
Net provision for loan losses			210	8
Loans and Leases receivable, Allowance, Ending Balance	220	8	220	8
Ending balance: Individually evaluated for impairment	24	8	24	8
Ending balance: Amounts related to acquired-impaired loans
Ending balance: Collectively evaluated for impairment	196		196
Acquired loans [Member] | Construction and land development [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	119,847	217,611	119,847	217,611
Ending balance: Individually evaluated for impairment	739	787	739	787
Ending balance: Acquired-impaired loans	18,976	15,530	18,976	15,530
Ending balance: Collectively evaluated for impairment	100,132	201,294	100,132	201,294
Acquired loans [Member] | Commercial real estate [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance			34
Charge-offs
Recoveries
Net provision for loan losses			630	317
Loans and Leases receivable, Allowance, Ending Balance	664	317	664	317
Ending balance: Individually evaluated for impairment	188	317	188	317
Ending balance: Amounts related to acquired-impaired loans
Ending balance: Collectively evaluated for impairment	476		476
Acquired loans [Member] | Commercial real estate [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	836,646	1,161,500	836,646	1,161,500
Ending balance: Individually evaluated for impairment	2,280	2,727	2,280	2,727
Ending balance: Acquired-impaired loans	27,993	49,218	27,993	49,218
Ending balance: Collectively evaluated for impairment	806,373	1,109,555	806,373	1,109,555
Acquired loans [Member] | Residential mortgages [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance
Charge-offs
Recoveries
Net provision for loan losses			14
Loans and Leases receivable, Allowance, Ending Balance	14		14
Ending balance: Individually evaluated for impairment
Ending balance: Amounts related to acquired-impaired loans
Ending balance: Collectively evaluated for impairment	14		14
Acquired loans [Member] | Residential mortgages [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	111,724	392,282	111,724	392,282
Ending balance: Individually evaluated for impairment		511		511
Ending balance: Acquired-impaired loans	4,547	9,193	4,547	9,193
Ending balance: Collectively evaluated for impairment	107,177	382,578	107,177	382,578
Acquired loans [Member] | Consumer [Member] | Allowance for loan losses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance
Charge-offs
Recoveries
Net provision for loan losses			311
Loans and Leases receivable, Allowance, Ending Balance	311		311
Ending balance: Individually evaluated for impairment
Ending balance: Amounts related to acquired-impaired loans
Ending balance: Collectively evaluated for impairment	311		311
Acquired loans [Member] | Consumer [Member] | Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance: Loans	84,403	162,722	84,403	162,722
Ending balance: Individually evaluated for impairment
Ending balance: Acquired-impaired loans	1,057	387	1,057	387
Ending balance: Collectively evaluated for impairment	$ 83,346	$ 162,335	$ 83,346	$ 162,335