Income Taxes (Schedule Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
Beginning balance | $ 58,215 | $ 55,077 | $ 47,298 |
Increase (decrease) relating to prior year provision | 21,696 | 719 | (112) |
Increase relating to current year provision | 8,727 | 2,706 | 7,891 |
Reductions based on the lapse of the applicable statutes of limitations | 0 | (287) | 0 |
Ending balance | $ 88,638 | $ 58,215 | $ 55,077 |