Defined Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Defined Benefit Plans [Abstract]

Net Periodic Cost (Benefit)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Expected return on plan assets, net of expenses	$	(2,859	)	$	(2,752	)	$	(8,576	)	$	(8,256	)
Interest cost on projected benefit obligation		1,973			1,931			5,919			5,793
Net amortization and deferral		783			729			2,348			2,186
Net periodic benefit	$	(103	)	$	(92	)	$	(309	)	$	(277	)