Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Unrecognized tax benefits, beginning balance	$ 10,827	$ 7,482
Gross increases - tax positions in prior period	279	2,184
Gross increases - current-period tax positions	788	1,219
Settlements	(331)	(58)
Unrecognized tax benefits, ending balance	$ 11,563	$ 10,827