Income Taxes (Summary Of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at January 1	$ 10,784us-gaap_UnrecognizedTaxBenefits	$ 5,926us-gaap_UnrecognizedTaxBenefits
Additions based on tax positions related to the current year	2,277	1,225
Additions based on tax positions related to prior years	(258)	(3,633)
Additions (reductions) as a result of lapse of the applicable statute of limitations	(191)	0
Balance at December 31	$ 12,612us-gaap_UnrecognizedTaxBenefits	$ 10,784us-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

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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

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-Publisher FASB

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

+ References

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

-Publisher FASB

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

+ References

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

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