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Supplemental Cash Flow Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 03, 2020
Apr. 03, 2020
Jun. 28, 2019
Mar. 29, 2019
Jul. 03, 2020
Jun. 28, 2019
Cash paid during period:            
Income taxes         $ 7,556 $ 5,972
Non-cash investing and financing activities:            
Unrealized gain (loss) on short-term investments $ (211) $ 168 $ 249 $ 154 (43) 403
Vested stock unit awards issued to settle accrued bonuses         8,645 7,947
Accrual for capital expenditures as of period end         216 1,978
Right-of-use asset obtained in exchange for operating lease obligations         $ 492 $ 26,152