Commitments and Contingencies Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	24 Months Ended
Dec. 31, 2012	Dec. 31, 2009
Commitments and Contingencies Disclosure [Abstract]
Purchase obligation, due within one year	$ 9,772
Purchase obligation total	4,009
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		133,000
Loss Contingency, Range of Possible Loss, Minimum	0
Loss Contingency, Range of Possible Loss, Maximum	236,000
Loss Contingency, Loss in Period	16,750
FCPA [Member]
Loss Contingencies [Line Items]
Loss Contingency, Loss in Period	16,750
Loss Contingency Accrual, at Carrying Value	$ 20,000

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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-Name Accounting Standards Codification

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

+ Details

- Definition

The estimated maximum amount of possible loss from the contingency.

+ References+ Details

- Definition

The estimated minimum amount of possible loss from the contingency.

+ References+ Details