Employee Benefit Plans (Tables)

6 Months Ended

Jun. 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 June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Service Cost	$	5,316		$	4,850		$	10,609		$	9,700
Interest Cost		10,951			9,632			21,851			19,264
Expected return on plan assets		(11,681	)		(9,621	)		(23,313	)		(19,242	)
Amortization:		-			-
Prior service cost		2,175			2,158			4,347			4,316
Recognized actuarial loss		2,148			1,367			4,296			2,734
Transition obligation		(11	)		(11	)		(22	)		(22	)
Other		32			20			64			40
Net periodic expense	$	8,930		$	8,395		$	17,832		$	16,790

	Post-Retirement Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Service Cost	$	51		$	70		$	103		$	139
Interest Cost		181			212			362			420
Amortization:
Prior service cost		(103	)		(98	)		(205	)		(200	)
Recognized actuarial loss		(60	)		(103	)		(120	)		(203	)
Net periodic expense	$	69		$	81		$	140		$	156