Defined Benefit Plans and Other Postretirement Benefits Disclosure (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Defined Benefit Plans and Other Postretirement Benefits Disclosure (Textuals)
Expected contribution towards domestic and foreign pension plans			$ 40,000
Pension Benefit Domestic [Member]
Components of net periodic benefit cost:
Service cost	1,925	1,079	3,850	2,158
Interest cost	11,250	11,349	22,500	22,697
Expected return on plan assets	(12,527)	(12,527)	(25,053)	(25,054)
Amortization of actuarial loss	7,575	6,943	15,150	13,886
Recognized actuarial loss		1,421		4,751
Net periodic benefit cost	8,223	8,265	16,447	18,438
Pension Benefit International [Member]
Components of net periodic benefit cost:
Service cost	634	561	1,258	1,149
Interest cost	4,579	4,083	9,077	8,359
Expected return on plan assets	(4,232)	(3,679)	(8,390)	(7,531)
Amortization of prior service cost	(189)	(149)	(377)	(307)
Amortization of actuarial loss	1,467	1,429	2,909	2,926
Net periodic benefit cost	2,259	2,245	4,477	4,596
Other Postretirement Benefits [Member]
Components of net periodic benefit cost:
Service cost	776	791	1,552	1,581
Interest cost	3,461	3,529	6,923	7,058
Amortization of prior service cost	(172)	(136)	(344)	(272)
Amortization of actuarial loss	316		631
Net periodic benefit cost	$ 4,381	$ 4,184	$ 8,762	$ 8,367

Defined Benefit Plans And Other Postretirement Benefits Disclosure.

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- Definition

Expected Contribution Towards Domestic and Foreign Pension Plans.

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- Definition

The amount of gains or losses recognized in net periodic benefit cost

+ References

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

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- Definition

The amounts in accumulated other comprehensive income related to prior service cost or credit expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7
-Subparagraph d

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- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain or loss, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments).

+ References

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

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

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- Definition

The adjustment out of other comprehensive income for actuarial gains (losses) recognized as a component of net periodic benefit cost during the period, after tax

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 4
-Subparagraph c, d

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