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Comprehensive Income	9 Months Ended
	Sep. 30, 2011
Comprehensive Income [Abstract]
Comprehensive Income	NOTE 7. Comprehensive Income Foreign subsidiaries' assets and liabilities are translated to United States dollars at the end of period exchange rates. Revenues and expenses are translated at average rates for the period. Translation adjustments are reported as a separate component of stockholders' equity in accumulated other comprehensive income. Total comprehensive income was $16.3 million and $12.6 million for the quarters ended September 30, 2011 and 2010, respectively and $41.2 million and $31.0 million for the nine months ended September 30, 2011 and 2010, respectively.

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The entire disclosure for comprehensive income. Includes, but is not limited to, the following: 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Components of comprehensive income include: (1) foreign currency translation adjustments; (2) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (3) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (4) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (5) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (6) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (7) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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



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