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Fair Value Measurements (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Assets |  |
Deferred compensation | $ 8,213 | $ 7,774
Total assets | 8,213 | 7,774
Liabilities |  |
Contingent consideration | 11,465 | 10,840
Deferred compensation | 13,377 | 11,836
Total liabilities | 24,842 | 22,676
Level 1 |  |
Assets |  |
Deferred compensation | 8,213 | 7,774
Total assets | 8,213 | 7,774
Liabilities |  |
Contingent consideration | 0 | 0
Deferred compensation | 13,377 | 11,836
Total liabilities | 13,377 | 11,836
Level 2 |  |
Assets |  |
Deferred compensation | 0 | 0
Total assets | 0 | 0
Liabilities |  |
Contingent consideration | 0 | 0
Deferred compensation | 0 | 0
Total liabilities | 0 | 0
Level 3 |  |
Assets |  |
Deferred compensation | 0 | 0
Total assets | 0 | 0
Liabilities |  |
Contingent consideration | 11,465 | 10,840
Deferred compensation | 0 | 0
Total liabilities | $ 11,465 | $ 10,840

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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