Allowance for Non-Covered Loan and Lease Loss and Credit Quality (Internal Risk Rating By Loan Class) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	$ 7,354,403	$ 6,681,080
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	4,325,024	4,183,254
Non-owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	2,328,260	2,316,909
Owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,259,583	1,276,840
Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	403,537	331,735
Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	245,231	200,631
Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	88,413	57,139
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	2,119,796	1,719,139
Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	770,845	797,061
LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	987,360	890,808
Leases and Equipment Finance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	361,591	31,270
Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	861,470	741,100
Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	597,201	478,463
Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	264,269	262,637
Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	48,113	37,587
Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	6,865,393	6,058,655
Percentage of impaired loans	6.40%	9.00%
Pass/Watch [Member] | Non-owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	2,073,366	1,993,369
Pass/Watch [Member] | Owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,182,865	1,185,721
Pass/Watch [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	385,335	324,315
Pass/Watch [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	230,262	165,185
Pass/Watch [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	67,019	25,018
Pass/Watch [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	718,778	717,546
Pass/Watch [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	951,109	847,883
Pass/Watch [Member] | Leases and Equipment Finance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	351,971	31,270
Pass/Watch [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	593,723	471,206
Pass/Watch [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	263,070	260,086
Pass/Watch [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	47,895	37,056
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	200,104	267,655
Percentage of impaired loans	3.70%	1.70%
Special Mention [Member] | Non-owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	108,263	174,892
Special Mention [Member] | Owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	27,615	26,475
Special Mention [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	5,574	1,950
Special Mention [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	2,054	12,654
Special Mention [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,836	4,373
Special Mention [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	23,393	22,256
Special Mention [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	24,197	19,510
Special Mention [Member] | Leases and Equipment Finance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	4,585	0
Special Mention [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,405	3,510
Special Mention [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,038	1,616
Special Mention [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	144	419
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	183,114	208,940
Percentage of impaired loans	89.90%	89.30%
Substandard [Member] | Non-owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	96,984	79,004
Substandard [Member] | Owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	37,524	50,911
Substandard [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	11,693	4,425
Substandard [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	3,326	6,063
Substandard [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,855	5,064
Substandard [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	19,651	46,727
Substandard [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	9,574	15,569
Substandard [Member] | Leases and Equipment Finance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,706	0
Substandard [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	743	1,120
Substandard [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	25	0
Substandard [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	33	57
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	3,169	0
Doubtful [Member] | Non-owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Doubtful [Member] | Owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	173	0
Doubtful [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Doubtful [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Doubtful [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Doubtful [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Doubtful [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Doubtful [Member] | Leases and Equipment Finance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	2,996	0
Doubtful [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Doubtful [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Doubtful [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,840	3,421
Loss [Member] | Non-owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Loss [Member] | Owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Loss [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Loss [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Loss [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Loss [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Loss [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Loss [Member] | Leases and Equipment Finance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	333	0
Loss [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,330	2,627
Loss [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	136	760
Loss [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	41	34
Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	100,783	142,409
Impaired [Member] | Non-owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	49,647	69,644
Impaired [Member] | Owner Occupied Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	11,406	13,733
Impaired [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	935	1,045
Impaired [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	9,589	16,729
Impaired [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	17,703	22,684
Impaired [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	9,023	10,532
Impaired [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	2,480	7,846
Impaired [Member] | Leases and Equipment Finance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Impaired [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	0
Impaired [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	0	175
Impaired [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	$ 0	$ 21