XML 11 R4.htm IDEA: XBRL DOCUMENT v3.8.0.1
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 30, 2018
Mar. 31, 2017
Mar. 30, 2018
Mar. 31, 2017
Statement of Comprehensive Income [Abstract]        
Change in pension plans, tax $ 44 $ 54 $ 88 $ 108