Debt instrument, covenant description - maximum annual capital expenditures.

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- Definition

Increase in current line of credit facility.

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- Definition

Line Of Credit Facility Actual Interest Coverage Ratio Range

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- Definition

Line of credit facility held by subsidiary.

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- Definition

Line Of Credit Facility Leverage Ratio Range

+ Details

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- Definition

line of Credit Facility, Percentage of lien on the shares of first-tier foreign subsidiaries maximum

+ Details

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- Definition

line of Credit Facility, Required consolidated Interest Coverage Ratio Minimum Range.

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- Definition

line of Credit Facility, Required consolidated leverage ratio Maximum Range

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- Definition

Line of Credit Facility Weighted average interest rate for Outstanding Borrowings

+ Details

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- Definition

Line of Credit Facility Weighted average interest rate for Outstanding Borrowings together with the related interest rate swap agreements

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- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Gross amount, as of the balance sheet date, of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings in periods after one year or beyond the normal operating cycle, if longer, over the life of the long-term debt instruments to which such costs pertain.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 21
-Paragraph 16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

+ Details

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Balance Type:	credit
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- Definition

Description of the fees for amounts available, but unused under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 4
-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 SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter).

+ References

+ Details

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- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Debt (Details) In Millions, unless otherwise specified	6 Months Ended
Debt (Details) In Millions, unless otherwise specified	Jun. 30, 2011 USD ($)	Jun. 30, 2011 EUR (€)	Dec. 31, 2010 USD ($)	Jun. 30, 2011 Minimum [Member] Base Rate Loans [Member]	Jun. 30, 2011 Minimum [Member] LIBOR Loans [Member]	Jun. 30, 2011 Maximum [Member] Base Rate Loans [Member]	Jun. 30, 2011 Maximum [Member] LIBOR Loans [Member]	Jun. 30, 2011 Base Rate Loans [Member]	Jun. 30, 2011 LIBOR Loans [Member]	Jun. 30, 2011 OMG Kokkola USD ($)	Dec. 31, 2010 OMG Kokkola USD ($)
Line of credit facility currently available	$ 250.0
Increase in current line of credit facility	75.0
Maximum borrowing capacity under line of credit facility	325.0
Percentage of lien on the shares of first-tier foreign subsidiaries	65.00%	65.00%
Line of credit facility, amount outstanding	120.0		120.0							0	0
Required minimum consolidated interest coverage ratio	not less than 3.50 to 1.00	not less than 3.50 to 1.00
Required maximum consolidated leverage ratio	not more than 2.50 to 1.00	not more than 2.50 to 1.00
Actual interest coverage ratio range	23.27 to 1.00	23.27 to 1.00
Actual leverage ratio range	.68 to 1.00	.68 to 1.00
Consolidated capital expenditures	50.0
Line of credit facility, expiration date	March 8, 2013	March 8, 2013
Applicable margins range				1.25%	2.25%	2.00%	3.00%	3.75%	4.25%
Percentage of unused commitment payment description	0.375% to 0.5% per annum	0.375% to 0.5% per annum
Weighted average interest rate for the outstanding borrowings under the Revolver	2.71%	2.71%
Weighted average interest rate for the outstanding borrowings under the revolver together with the related interest rate swap agreements	2.99%	2.99%
Fees and expenses related to the Revolver	2.6
Credit facility held by subsidiary		€ 25
LIBOR plus margin rate of credit facility held by subsidiary	LIBOR plus a margin of 0.55%	LIBOR plus a margin of 0.55%