Income Taxes (Summary Of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at January 1	$ 5,926	$ 4,567
Additions based on tax positions related to the current year	1,225	330
Additions based on tax positions related to prior years	3,633	1,539
Reductions for tax positions of prior years	0	(308)
Reductions as a result of a lapse of the applicable statute of limitations	0	(202)
Balance at December 31	$ 10,784	$ 5,926

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

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

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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.

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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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