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Pension and retirement plans (Tables) | 6 Months Ended
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Dec. 30, 2023
Pension and retirement plan |
Components of net periodic pension costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Second Quarters Ended | ​ | Six Months Ended
​ |  | December 30, |  | December 31, |  | December 30, |  | December 31,
​ | ​ | 2023 |  | 2022 |  | 2023 |  | 2022
​ | ​ | (Thousands)
Service cost within selling, general and administrative expenses | ​ | $ | 2,563 | ​ | $ | 3,004 | ​ | $ | 5,126 | ​ | $ | 6,008
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest cost | ​ |  | 6,144 | ​ |  | 6,683 | ​ |  | 12,289 | ​ |  | 13,365
Expected return on plan assets | ​ |  | (9,985) | ​ |  | (12,215) | ​ |  | (19,970) | ​ |  | (24,430)
Amortization of prior service cost | ​ |  | 1 | ​ |  | 1 | ​ |  | 2 | ​ |  | 2
Recognized net actuarial loss | ​ |  | 55 | ​ |  | 618 | ​ |  | 111 | ​ |  | 1,235
Total net periodic pension benefit within other (expense) income, net | ​ | ​ | (3,785) | ​ | ​ | (4,913) | ​ | ​ | (7,568) | ​ | ​ | (9,828)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net periodic pension benefit | ​ | $ | (1,222) | ​ | $ | (1,909) | ​ | $ | (2,442) | ​ | $ | (3,820)
​

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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