CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended
Dec. 28, 2019	Dec. 29, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 40,163	$ 27,719
Other comprehensive income:
Amortization of net actuarial losses and prior service credits into earnings	541	552
Other comprehensive income	541	552
Total comprehensive income	$ 40,704	$ 28,271

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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