Income Taxes (Schedule Of Changes In Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Total amounts of unrecognized tax benefits, beginning of period	$ 6,325us-gaap_UnrecognizedTaxBenefits	$ 5,906us-gaap_UnrecognizedTaxBenefits	$ 5,149us-gaap_UnrecognizedTaxBenefits
Gross increases in unrecognized tax benefits as a result of tax positions taken during a prior period	432	8	290
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions	1,789	1,954	1,436
Decreases in unrecognized tax benefits relating to settlements with taxing authorities	(2,242)	(317)
Decreases in unrecognized tax benefits as a result of a lapse of the applicable statutes of limitations	(362)	(1,226)	(969)
Total amounts of unrecognized tax benefits, end of period	$ 5,942us-gaap_UnrecognizedTaxBenefits	$ 6,325us-gaap_UnrecognizedTaxBenefits	$ 5,906us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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