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Amounts Reclassified Out of Accumulated Other Comprehensive Income - Reclassification out of accumulated other comprehensive (loss) income (Details) - USD ($)
$ in Thousands

12 Months Ended

Sep. 29, 2018

Sep. 30, 2017

Sep. 24, 2016

Accumulated Other Comprehensive Income (Loss) [Line Items]

Balance beginning

$ (28,812)

$ (45,832)

$ (48,883)

Other comprehensive income before reclassifications

1,612

5,893

(4,569)

Recognition in earnings of net actuarial loss for pension settlement

0

6,100

2,000

Reclassifications to earnings

2,530

5,027

5,620

Other comprehensive income

4,142

17,020

3,051

Balance ending

(24,670)

(28,812)

(45,832)

Cash Flow Hedges [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Balance beginning

0

(205)

(1,311)

Other comprehensive income before reclassifications

0

(10)

6

Reclassifications to earnings

^[1]

0

215

1,100

Other comprehensive income

0

205

1,106

Balance ending

0

0

(205)

Pension Benefits [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Balance beginning

(37,311)

(51,391)

(52,836)

Funded status benefit plan obligation

448

2,779

(5,773)

Recognition in earnings of net actuarial loss for pension settlement

^[2]

0

6,100

2,000

Other comprehensive income

4,131

14,080

1,445

Balance ending

(33,180)

(37,311)

(51,391)

Amortization of Net Loss [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Reclassifications to earnings

^[2]

3,683

5,201

5,218

Post-Retirement Benefits [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Balance beginning

8,499

5,764

5,264

Prior service credits

0

3,246

0

Funded status benefit plan obligation

1,164

(122)

1,198

Other comprehensive income

11

2,735

500

Balance ending

8,510

8,499

5,764

Amortization of Prior Service Credits [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Reclassifications to earnings

^[2]

(498)

0

(399)

Amortization of Net (Gain) [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Reclassifications to earnings

^[2]

$ (655)

$ (389)

$ (299)

[1]	Reclassification of realized losses on cash flow hedges are recognized in interest expense.
[2]	These amounts are included in the computation of net periodic benefit cost. See Note 10, “Employee Benefit Plans”.

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