XML 14 R4.htm IDEA: XBRL DOCUMENT v3.7.0.1
Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]        
Net income $ 100,749 $ 117,760 $ 192,268 $ 201,060
Other comprehensive income, net of tax:        
Change in value of derivatives 20 20 41 41
Other comprehensive income 20 20 41 41
Comprehensive income $ 100,769 $ 117,780 $ 192,309 $ 201,101