Pension Plan (Tables)

9 Months Ended

Sep. 30, 2011

Pension Plan [Abstract]

Schedule Of Components Of Net Periodic Pension Cost For Defined Benefit Pension Plan

	Three months ended September 30,						Nine months ended September 30,
	2011			2010			2011			2010
Service cost	$	290		$	285		$	871		$	855
Interest cost		1,262			1,239			3,785			3,718
Expected return on assets		(1,642	)		(1,288	)		(4,925	)		(3,864	)
Recognized actuarial loss		607			635			1,821			1,904
Net periodic pension cost	$	517		$	871		$	1,552		$	2,613