XML 20 R6.htm IDEA: XBRL DOCUMENT v3.10.0.1
Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
3 Months Ended 9 Months Ended
Sep. 28, 2018
Sep. 29, 2017
Sep. 28, 2018
Sep. 29, 2017
Statement of Comprehensive Income [Abstract]        
Reclassification adjustments to net income resulting from realized gains or losses on sale of securities $ 0 $ 0 $ 0 $ 0
Income tax expense related to other comprehensive income $ 0 $ 0 $ 0 $ 0