XML 87 R68.htm IDEA: XBRL DOCUMENT v3.19.1
Schedule of Effect of Derivative Instruments in Statement of Operations Recognized (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Apr. 01, 2018
Other (income) expense, net    
Derivative Instruments, Gain (Loss) [Line Items]    
Losses (Gains) on derivatives recognized in statements of operations $ 3,934 $ 1,575