Loans, Allowance for Credit Losses and Credit Quality Finance Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	$ 1,632,765
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,141,583
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,044,272
Financing Receivable, Originated Four Years before Latest Fiscal Year	820,215
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,606,888
Financing Receivable, Revolving	1,448,724
Financing Receivable, after Allowance for Credit Loss	1,643,596
Loans and Leases Receivable, Gross	9,359,648	$ 8,873,639
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	905,009
Financing Receivable, Originated Two Years before Latest Fiscal Year	588,489
Financing Receivable, Originated Three Years before Latest Fiscal Year	651,847
Financing Receivable, Originated Four Years before Latest Fiscal Year	457,139
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	905,575
Financing Receivable, Revolving	48,889
Financing Receivable, after Allowance for Credit Loss	499,245
Loans and Leases Receivable, Gross	4,071,047	4,002,359
Commercial Real Estate [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	6,423
Financing Receivable, Originated Two Years before Latest Fiscal Year	4,821
Financing Receivable, Originated Three Years before Latest Fiscal Year	23,123
Financing Receivable, Originated Four Years before Latest Fiscal Year	14,159
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	47,055
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	5,218
Loans and Leases Receivable, Gross	100,799
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	895,594
Financing Receivable, Originated Two Years before Latest Fiscal Year	546,513
Financing Receivable, Originated Three Years before Latest Fiscal Year	607,633
Financing Receivable, Originated Four Years before Latest Fiscal Year	438,455
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	846,195
Financing Receivable, Revolving	48,889
Financing Receivable, after Allowance for Credit Loss	490,280
Loans and Leases Receivable, Gross	3,888,413
Commercial Real Estate [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,992
Financing Receivable, Originated Two Years before Latest Fiscal Year	37,155
Financing Receivable, Originated Three Years before Latest Fiscal Year	21,091
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,525
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	12,325
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	3,747
Loans and Leases Receivable, Gross	81,835
Commercial Real Estate [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	0
Commercial Real Estate [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	0
Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	197,429
Financing Receivable, Originated Two Years before Latest Fiscal Year	154,234
Financing Receivable, Originated Three Years before Latest Fiscal Year	55,003
Financing Receivable, Originated Four Years before Latest Fiscal Year	31,804
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	27,118
Financing Receivable, Revolving	620,905
Financing Receivable, after Allowance for Credit Loss	915,434
Loans and Leases Receivable, Gross	2,004,645	1,395,036
Commercial And Industrial [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,818
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,426
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,787
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,609
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	544
Financing Receivable, Revolving	12,515
Financing Receivable, after Allowance for Credit Loss	1,896
Loans and Leases Receivable, Gross	24,645
Commercial And Industrial [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	193,832
Financing Receivable, Originated Two Years before Latest Fiscal Year	129,199
Financing Receivable, Originated Three Years before Latest Fiscal Year	44,664
Financing Receivable, Originated Four Years before Latest Fiscal Year	27,640
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	25,095
Financing Receivable, Revolving	565,953
Financing Receivable, after Allowance for Credit Loss	911,414
Loans and Leases Receivable, Gross	1,900,465
Commercial And Industrial [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,779
Financing Receivable, Originated Two Years before Latest Fiscal Year	23,609
Financing Receivable, Originated Three Years before Latest Fiscal Year	5,552
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,555
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,430
Financing Receivable, Revolving	42,437
Financing Receivable, after Allowance for Credit Loss	2,124
Loans and Leases Receivable, Gross	79,486
Commercial And Industrial [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	49
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	49
Commercial And Industrial [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Construction Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	242,277
Financing Receivable, Originated Two Years before Latest Fiscal Year	97,154
Financing Receivable, Originated Three Years before Latest Fiscal Year	66,282
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,810
Financing Receivable, Revolving	32,189
Financing Receivable, after Allowance for Credit Loss	91,981
Loans and Leases Receivable, Gross	537,788	547,293
Construction Loans [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	367
Financing Receivable, Originated Two Years before Latest Fiscal Year	382
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	177
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	926
Construction Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	241,910
Financing Receivable, Originated Two Years before Latest Fiscal Year	95,253
Financing Receivable, Originated Three Years before Latest Fiscal Year	66,282
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,810
Financing Receivable, Revolving	32,012
Financing Receivable, after Allowance for Credit Loss	91,981
Loans and Leases Receivable, Gross	535,343
Construction Loans [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,519
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	1,519
Construction Loans [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	0
Construction Loans [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	0
Small Business [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	31,219
Financing Receivable, Originated Two Years before Latest Fiscal Year	22,799
Financing Receivable, Originated Three Years before Latest Fiscal Year	16,988
Financing Receivable, Originated Four Years before Latest Fiscal Year	16,971
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	26,214
Financing Receivable, Revolving	41,200
Financing Receivable, after Allowance for Credit Loss	14,897
Loans and Leases Receivable, Gross	170,288	174,497
Small Business [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	11
Financing Receivable, Originated Two Years before Latest Fiscal Year	17
Financing Receivable, Originated Three Years before Latest Fiscal Year	12
Financing Receivable, Originated Four Years before Latest Fiscal Year	748
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	246
Financing Receivable, Revolving	563
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	1,597
Small Business [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	30,764
Financing Receivable, Originated Two Years before Latest Fiscal Year	22,702
Financing Receivable, Originated Three Years before Latest Fiscal Year	16,803
Financing Receivable, Originated Four Years before Latest Fiscal Year	16,109
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	25,521
Financing Receivable, Revolving	39,804
Financing Receivable, after Allowance for Credit Loss	14,711
Loans and Leases Receivable, Gross	166,414
Small Business [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	444
Financing Receivable, Originated Two Years before Latest Fiscal Year	80
Financing Receivable, Originated Three Years before Latest Fiscal Year	173
Financing Receivable, Originated Four Years before Latest Fiscal Year	114
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	447
Financing Receivable, Revolving	833
Financing Receivable, after Allowance for Credit Loss	186
Loans and Leases Receivable, Gross	2,277
Small Business [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	0
Small Business [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	0
Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	185,896
Financing Receivable, Originated Two Years before Latest Fiscal Year	213,767
Financing Receivable, Originated Three Years before Latest Fiscal Year	188,652
Financing Receivable, Originated Four Years before Latest Fiscal Year	264,118
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	500,624
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	78,072
Loans and Leases Receivable, Gross	1,431,129	$ 1,590,569
Residential Real Estate [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	427
Financing Receivable, Originated Three Years before Latest Fiscal Year	939
Financing Receivable, Originated Four Years before Latest Fiscal Year	369
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,808
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	6,543
Residential Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	185,896
Financing Receivable, Originated Two Years before Latest Fiscal Year	213,340
Financing Receivable, Originated Three Years before Latest Fiscal Year	187,713
Financing Receivable, Originated Four Years before Latest Fiscal Year	263,749
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	495,816
Financing Receivable, Revolving	0
Financing Receivable, after Allowance for Credit Loss	78,072
Loans and Leases Receivable, Gross	1,424,586
Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	70,369
Financing Receivable, Originated Two Years before Latest Fiscal Year	64,874
Financing Receivable, Originated Three Years before Latest Fiscal Year	64,584
Financing Receivable, Originated Four Years before Latest Fiscal Year	49,347
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	131,319
Financing Receivable, Revolving	693,576
Financing Receivable, after Allowance for Credit Loss	43,516
Loans and Leases Receivable, Gross	1,120,523
Home Equity Loan [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	15
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	419
Financing Receivable, Revolving	2,466
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	3,203
Home Equity Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	70,369
Financing Receivable, Originated Two Years before Latest Fiscal Year	64,874
Financing Receivable, Originated Three Years before Latest Fiscal Year	64,569
Financing Receivable, Originated Four Years before Latest Fiscal Year	49,347
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	130,900
Financing Receivable, Revolving	691,110
Financing Receivable, after Allowance for Credit Loss	43,516
Loans and Leases Receivable, Gross	1,117,320
Consumer Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	566
Financing Receivable, Originated Two Years before Latest Fiscal Year	266
Financing Receivable, Originated Three Years before Latest Fiscal Year	916
Financing Receivable, Originated Four Years before Latest Fiscal Year	836
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	9,228
Financing Receivable, Revolving	11,965
Financing Receivable, after Allowance for Credit Loss	451
Loans and Leases Receivable, Gross	24,228
Consumer Loan [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	35
Financing Receivable, after Allowance for Credit Loss	0
Loans and Leases Receivable, Gross	35
Consumer Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	566
Financing Receivable, Originated Two Years before Latest Fiscal Year	266
Financing Receivable, Originated Three Years before Latest Fiscal Year	916
Financing Receivable, Originated Four Years before Latest Fiscal Year	836
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	9,193
Financing Receivable, Revolving	11,965
Financing Receivable, after Allowance for Credit Loss	451
Loans and Leases Receivable, Gross	24,193
Revolving converted to term [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	21,605
Revolving converted to term [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	14,854
Revolving converted to term [Member] | Commercial Real Estate [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	14,854
Revolving converted to term [Member] | Commercial Real Estate [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Commercial Real Estate [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Commercial Real Estate [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	2,718
Revolving converted to term [Member] | Commercial And Industrial [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	50
Revolving converted to term [Member] | Commercial And Industrial [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	2,668
Revolving converted to term [Member] | Commercial And Industrial [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Commercial And Industrial [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Commercial And Industrial [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Construction Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	1,095
Revolving converted to term [Member] | Construction Loans [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Construction Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	1,095
Revolving converted to term [Member] | Construction Loans [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Construction Loans [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Construction Loans [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Small Business [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Small Business [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Small Business [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Small Business [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Small Business [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Small Business [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Residential Real Estate [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Residential Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	2,938
Revolving converted to term [Member] | Home Equity Loan [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	303
Revolving converted to term [Member] | Home Equity Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	2,635
Revolving converted to term [Member] | Consumer Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Consumer Loan [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	0
Revolving converted to term [Member] | Consumer Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	$ 0