XML 89 R77.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes Schedule of Income before Income Tax, Domestic and Foreign (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Income Tax Disclosure [Abstract]    
Effective Income Tax Rate Reconciliation, Percent 24.70% 33.90%
Income from continuing operations before provision for income taxes $ 200,935 $ 212,750