Comprehensive Income (Details1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Unrealized Gain on Securities [Roll Forward]
Beginning Balance			$ 6,574	$ 6,305
Net Change in Other Comprehensive Income (Loss)			582	228
Ending Balance	7,156	6,533	7,156	6,533
Unrealized Loss on Cash Flow Hedge [Roll Forward]
Beginning Balance			(10,804)	(7,125)
Net Change in Other Comprehensive Income (Loss)			355	(4,044)
Ending Balance	(10,449)	(11,169)	(10,449)	(11,169)
Deferred Gain on Hedge Transactions [Roll Forward]
Beginning Balance			1,004	1,148
Net Change in Other Comprehensive Income (Loss)			(109)	(108)
Ending Balance	895	1,040	895	1,040
Defined Benefit Pension Plans [Roll Forward]
Beginning Balance			(1,260)	(1,094)
Net Change in Other Comprehensive Income (Loss)			69	330
Ending Balance	(1,191)	(764)	(1,191)	(764)
Accumulated Other Comprehensive Income (Loss) [Rollforward]
Beginning Balance			(4,486)	(766)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	741	(3,375)	897	(3,594)
Ending Balance	$ (3,589)	$ (4,360)	$ (3,589)	$ (4,360)