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Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Employee Benefit Plans

Components Of Pension Expense

		Three months ended June 30								Six months ended June 30,
		2011				2010				2011				2010
Service cost		$	4,062			$	3,667			$	6,633			$	6,671
Interest cost			7,398				7,317				11,905				12,546
Expected return on assets			(8,817	)			(9,497	)			(14,352	)			(16,018	)
Amortization of prior service cost			66				68				105				115
Amortization of net actuarial loss			1,977				1,155				3,190				2,080
Total pension expense		$	4,686			$	2,710			$	7,481			$	5,394

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X

- Definition

This element may be used to capture the entire disclosure for an employer that sponsors one or more defined benefit pension plans or one or more other defined benefit postretirement plans, of certain information, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 4, 7, 16, 20, 21

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