Pension Plans and Other Postretirement Benefits (Tables)

3 Months Ended

Dec. 27, 2014

Pension Plans and Other Postretirement Benefits [Abstract]

Components of net periodic benefit costs

The following table provides the components of net periodic benefit costs:

	Pension Benefits						Postretirement Benefits
	Three Months Ended						Three Months Ended
	December 27,			December 28,			December 27,			December 28,
	2014			2013			2014			2013
Interest cost	$	1,282		$	1,443		$	144		$	161
Expected return on plan assets		(1,228	)		(1,275	)		—			—
Amortization of prior service costs		—			—			(122	)		(122	)
Amortization of net loss (gain)		1,130			1,123			(49	)		(46	)
Net periodic benefit cost	$	1,184		$	1,291		$	(27	)	$	(7	)