Income Taxes (Changes in Gross Amounts of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Income Tax Expense (Benefit) [Abstract]
Beginning balance at December 31	$ 8,673	$ 10,338
Additions based on tax positions related to the current year	757	322
Additions for tax positions of prior years	31	124
Settlements with taxing authorities	(2,257)	(592)
Reductions due to lapse of statute of limitations	(207)	(1,361)
Increase from currency translation	(62)	(158)
Ending balance at December 31	$ 6,935	$ 8,673

Unrecognized Tax Benefits Period Increase Decrease From Currency Translation

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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