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Pension Plans and Other Postretirement Benefits (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	$ 32,614	$ 31,508
United States [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	13,199	12,784
International [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	3,290	2,968
Fixed Income Funds [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	16,125	15,756
Level 1 [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total
Level 1 [Member] | United States [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total
Level 1 [Member] | International [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total
Level 1 [Member] | Fixed Income Funds [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total
Level 2 [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	32,614	31,508
Level 2 [Member] | United States [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	13,199	12,784
Level 2 [Member] | International [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	3,290	2,968
Level 2 [Member] | Fixed Income Funds [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	16,125	15,756
Level 3 [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total	0	0
Level 3 [Member] | United States [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total
Level 3 [Member] | International [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total
Level 3 [Member] | Fixed Income Funds [Member]
Fair value hierarchy for the Company's defined benefit pension plan assets
Total

X

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X

- Definition

If aggregate disclosures are presented, the aggregate fair value of plan assets for plans with benefit obligations in excess of plan assets as of the measurement date of each 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 6

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2417-114920

+ Details

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