XML 44 R31.htm IDEA: XBRL DOCUMENT v3.10.0.1
Dividends (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Aug. 02, 2018
Feb. 14, 2018
Jun. 30, 2018
Mar. 31, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Dividends Payable [Line Items]              
Common Stock, Dividends, Per Share, Cash Paid   $ 3.17 $ 0.07 $ 0.07 $ 0 $ 3.31 $ 0
Dividends paid   $ (92,740)       $ (96,854) $ 0
Quarterly Dividend [Member]              
Dividends Payable [Line Items]              
Common Stock, Dividends, Per Share, Cash Paid           $ 0.14  
Dividends paid           $ (4,200)  
Subsequent Event [Member]              
Dividends Payable [Line Items]              
Common Stock, Dividends, Per Share, Declared $ 0.09            
Dividends Payable, Current $ 2,600