Loans Receivable (Interest Income Recognized in loans individually evaluated for impairment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Loan [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Total Interest Income	$ 1,299	$ 1,030	$ 2,578	$ 2,069
Impaired Financing Receivable Average Recorded Investment [Abstract]
Total Average Recorded Investment	147,814	316,134	147,489	318,658
Originated Loans [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Total Interest Income	1,299	1,015	2,578	2,039
Impaired Financing Receivable Average Recorded Investment [Abstract]
Total Average Recorded Investment	147,051	315,345	146,649	318,030
Most recent acquired loans accounted for under ASC 310-20 [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Total Interest Income	0	15	0	30
Impaired Financing Receivable Average Recorded Investment [Abstract]
Total Average Recorded Investment	763	789	840	628
Commercial Loan [Member] | Originated Loans [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method	193	75	385	150
Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method	383	149	766	298
Impaired Financing Receivable Average Recorded Investment [Abstract]
Impaired Financing Receivable With Related Allowance Average Recorded Investment	14,908	194,759	13,859	195,777
Impaired Financing Receivable With No Related Allowance Average Recorded Investment	44,528	29,579	44,211	31,603
Commercial Loan [Member] | Most recent acquired loans accounted for under ASC 310-20 [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method	0	0	0	0
Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method	0	15	0	30
Impaired Financing Receivable Average Recorded Investment [Abstract]
Impaired Financing Receivable With Related Allowance Average Recorded Investment	0	0	0	0
Impaired Financing Receivable With No Related Allowance Average Recorded Investment	763	789	840	628
Troubled Debt Restructuring [Member] | Originated Loans [Member]
Impaired Financing Receivable Interest Income Accrual Method [Abstract]
Impaired Financing Receivable With Related Allowance Interest Income Accrual Method	723	791	1,427	1,591
Impaired Financing Receivable Average Recorded Investment [Abstract]
Impaired Financing Receivable With Related Allowance Average Recorded Investment	$ 87,615	$ 91,007	$ 88,579	$ 90,650