Loans Receivable And Allowance For Credit Losses Landscape Financing Receivables Past Due (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	$ 18,200,000		$ 18,200,000		$ 11,200,000
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	25,439,000		25,439,000		34,944,000
60 to 89 days past due	8,999,000		8,999,000		8,569,000
90 days or more past due	43,066,000		43,066,000		93,936,000
Total past due	77,504,000		77,504,000		137,449,000
Current	7,076,739,000		7,076,739,000		6,115,785,000
Greater than 90 days and accruing	0		0		0
% of Total, 30 to 59 days past due	0.00%		0.00%		1.00%
% of Total, 60 to 89 days past due	0.00%		0.00%		0.00%
% of Total, 90 days past due	1.00%		1.00%		2.00%
% of Total, Total Past Due	1.00%		1.00%		3.00%
% of Total, Current	99.00%		99.00%		97.00%
Total loans receivable, gross	7,154,243,000		7,154,243,000		6,253,234,000
Total Loans, Percentage	100.00%		100.00%		100.00%
% of Total, 90 days past due and still accruing	0.00%		0.00%		0.00%
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	156,798,000		156,798,000		235,439,000
Charge-offs	(38,832,000)		(38,832,000)		(50,110,000)
Book Balance, Without Specific Reserve	97,060,000		97,060,000		152,448,000
Book Balance, With Specific Reserve	20,906,000		20,906,000		32,881,000
Specific Reserve	4,900,000		4,900,000		8,463,000
Average Book Balance	130,347,000	238,890,000	151,648,000	249,800,000
Interest Income Recognized	555,000	1,566,000	4,190,000	5,651,000
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	2,824,000		2,824,000		5,800,000
60 to 89 days past due	1,719,000		1,719,000		1,576,000
90 days or more past due	15,131,000		15,131,000		20,507,000
Total past due	19,674,000		19,674,000		27,883,000
Current	1,032,707,000		1,032,707,000		778,839,000
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,052,381,000		1,052,381,000		806,722,000
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	42,761,000		42,761,000		49,816,000
Charge-offs	(4,951,000)		(4,951,000)		(6,391,000)
Book Balance, Without Specific Reserve	37,523,000		37,523,000		43,060,000
Book Balance, With Specific Reserve	287,000		287,000		365,000
Specific Reserve	287,000		287,000		365,000
Average Book Balance	39,152,000	43,393,000	40,618,000	43,065,000
Interest Income Recognized	129,000	170,000	446,000	588,000
Investor CRE [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	7,522,000		7,522,000		10,565,000
60 to 89 days past due	1,786,000		1,786,000		1,042,000
90 days or more past due	5,715,000		5,715,000		34,196,000
Total past due	15,023,000		15,023,000		45,803,000
Current	1,110,454,000		1,110,454,000		1,174,044,000
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,125,477,000		1,125,477,000		1,219,847,000
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	28,274,000		28,274,000		59,099,000
Charge-offs	(4,254,000)		(4,254,000)		(8,366,000)
Book Balance, Without Specific Reserve	18,956,000		18,956,000		33,540,000
Book Balance, With Specific Reserve	5,064,000		5,064,000		17,193,000
Specific Reserve	1,292,000		1,292,000		2,697,000
Average Book Balance	24,646,000	63,746,000	37,376,000	52,656,000
Interest Income Recognized	147,000	278,000	603,000	1,281,000
Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	0		0		707,000
60 to 89 days past due	0		0		479,000
90 days or more past due	222,000		222,000		3,436,000
Total past due	222,000		222,000		4,622,000
Current	2,029,598,000		2,029,598,000		1,575,667,000
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	2,029,820,000		2,029,820,000		1,580,289,000
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	2,310,000		2,310,000		9,554,000
Charge-offs	(737,000)		(737,000)		(1,405,000)
Book Balance, Without Specific Reserve	1,573,000		1,573,000		6,873,000
Book Balance, With Specific Reserve	0		0		1,276,000
Specific Reserve	0		0		219,000
Average Book Balance	1,819,000	17,865,000	4,860,000	7,544,000
Interest Income Recognized	22,000	55,000	61,000	405,000
Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	602,000		602,000		611,000
60 to 89 days past due	0		0		0
90 days or more past due	3,588,000		3,588,000		8,243,000
Total past due	4,190,000		4,190,000		8,854,000
Current	48,739,000		48,739,000		65,811,000
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	52,929,000		52,929,000		74,665,000
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	17,643,000		17,643,000		31,040,000
Charge-offs	(11,954,000)		(11,954,000)		(14,345,000)
Book Balance, Without Specific Reserve	5,226,000		5,226,000		15,421,000
Book Balance, With Specific Reserve	463,000		463,000		1,274,000
Specific Reserve	152,000		152,000		266,000
Average Book Balance	10,276,000	30,152,000	11,192,000	61,340,000
Interest Income Recognized	60,000	692,000	2,231,000	1,565,000
Owner Occupied CRE [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	8,764,000		8,764,000		10,543,000
60 to 89 days past due	3,174,000		3,174,000		3,300,000
90 days or more past due	13,046,000		13,046,000		20,883,000
Total past due	24,984,000		24,984,000		34,726,000
Current	1,379,022,000		1,379,022,000		1,241,865,000
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,404,006,000		1,404,006,000		1,276,591,000
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	46,212,000		46,212,000		61,300,000
Charge-offs	(4,743,000)		(4,743,000)		(6,452,000)
Book Balance, Without Specific Reserve	26,377,000		26,377,000		42,075,000
Book Balance, With Specific Reserve	15,092,000		15,092,000		12,773,000
Specific Reserve	3,169,000		3,169,000		4,916,000
Average Book Balance	46,263,000	68,270,000	48,159,000	68,353,000
Interest Income Recognized	184,000	316,000	773,000	1,722,000
C&I [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	1,567,000		1,567,000		2,690,000
60 to 89 days past due	826,000		826,000		376,000
90 days or more past due	1,557,000		1,557,000		1,954,000
Total past due	3,950,000		3,950,000		5,020,000
Current	677,716,000		677,716,000		535,479,000
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	681,666,000		681,666,000		540,499,000
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	14,677,000		14,677,000		16,959,000
Charge-offs	(11,956,000)		(11,956,000)		(12,725,000)
Book Balance, Without Specific Reserve	2,721,000		2,721,000		4,234,000
Book Balance, With Specific Reserve	0		0		0
Specific Reserve	0		0		0
Average Book Balance	3,242,000	10,137,000	3,478,000	10,895,000
Interest Income Recognized	13,000	51,000	71,000	86,000
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	4,160,000		4,160,000		4,028,000
60 to 89 days past due	1,494,000		1,494,000		1,796,000
90 days or more past due	3,807,000		3,807,000		4,717,000
Total past due	9,461,000		9,461,000		10,541,000
Current	798,503,000		798,503,000		744,080,000
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	807,964,000		807,964,000		754,621,000
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	4,921,000		4,921,000		7,671,000
Charge-offs	(237,000)		(237,000)		(426,000)
Book Balance, Without Specific Reserve	4,684,000		4,684,000		7,245,000
Book Balance, With Specific Reserve	0		0		0
Specific Reserve	0		0		0
Average Book Balance	4,949,000	5,327,000	5,965,000	5,947,000
Interest Income Recognized	$ 0	$ 4,000	$ 5,000	$ 4,000