Derivative Instruments (Derivative Liabilities Offset in The consolidated Balance Sheets) (Details) - Interest Rate Swap [Member] $ in Thousands	Jun. 30, 2015 USD ($)
Not Designated as Hedging Instrument [Member]
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$ 6,602
Derivative liabilities	6,602
Fair Value of collateral	14,938
Total Gross amounts not offset in the statement of financial position including applicable netting agreement and fair value of collateral	14,938
Net Amount	0
Designated as Hedging Instrument [Member]
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	13
Derivative liabilities	0
Fair Value of collateral	30
Total Gross amounts not offset in the statement of financial position including applicable netting agreement and fair value of collateral	30
Net Amount	$ 0