Fair Value Measurements (Changes In Components Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Cumulative translation adjustments—net of tax	[1]	$ 148	$ 53	$ 557	$ (755)

[1] Net of income tax (provision) benefit of $(99) and $(35) for the three months ended June 30, 2016 and 2015, respectively and $(370) and $500 for the six months ended June 30, 2016 and 2015, respectively.