Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Employee Benefit Plans [Abstract]

Components of net periodic expense relating to retirement and post-retirement benefit plans

The following table sets forth the components of the Company's net periodic expense relating to retirement and post-retirement benefit plans:

	Retirement Plan Benefits
	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Service Cost	$	5,320		$	4,850		$	15,929		$	14,550
Interest Cost		10,946			9,632			32,797			28,896
Expected return on plan assets		(11,691	)		(9,621	)		(35,004	)		(28,863	)
Amortization:
Prior service cost		2,174			2,158			6,521			6,474
Recognized actuarial loss		2,148			1,367			6,444			4,101
Transition obligation		(11	)		(11	)		(33	)		(33	)
Other		33			20			97			60
Net periodic expense	$	8,919		$	8,395		$	26,751		$	25,185

	Post-Retirement Benefits
	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Service Cost	$	52		$	70		$	155		$	209
Interest Cost		181			209			543			629
Amortization:
Prior service cost		(102	)		(102	)		(307	)		(302	)
Recognized actuarial loss		(61	)		(100	)		(181	)		(303	)
Net periodic expense	$	70		$	77		$	210		$	233