Associate Retirement Plans	9 Months Ended
Oct. 05, 2019
Compensation And Retirement Disclosure [Abstract]
Associate Retirement Plans	Note 10 – Associate Retirement Plans During the 12- and 40- week periods ended October 5, 2019, the Company recognized net periodic postretirement benefit costs of $10.1 million and $19.3 million, respectively, related to the SpartanNash Company Pension Plan (“Pension Plan”) and $0.1 million and $0.3 million, respectively, related to the SpartanNash Retiree Medical Plan. During the 12- and 40- week periods ended October 6, 2018, the Company recognized net periodic pension income of $0.1 million and $0.3 million, respectively, and net periodic postretirement benefit costs of $0.1 million and $0.4 million, respectively for the aforementioned plans. Substantially all of these amounts are included in Postretirement benefit expense (income) in the condensed consolidated statements of operations. On February 28, 2018, the Company’s Board of Directors granted approval to proceed with terminating the frozen Pension Plan. The Plan was terminated on July 31, 2018. The Company offered participants the option to receive an annuity or lump sum distribution which may be rolled over into another qualified plan. The distribution of assets to plan participants commenced in the second quarter and was completed in the third quarter of 2019. The Company has incurred pre-tax settlement charges in the amount of $18.2 million to recognize the deferred losses in AOCI upon distribution of the Plan assets, of which $9.4 million was recognized in the 12 weeks ended October 5, 2019. The Company also recognized other termination expenses of $1.3 million in 2019. The Company expects the Plan termination will reduce administrative fees and premium funding costs in future periods. The Company did not make any contributions to the Pension Plan during the 40-week period ended October 5, 2019. The remaining overfunded Plan assets will be utilized by the Company to fund obligations associated with other qualified retirement programs. The Company expects to make total contributions of $0.4 million in 2019 to the Retiree Medical Plan and has made $0.3 million in the year-to-date period. The Company’s retirement programs also include defined contribution plans providing contributory benefits, as well as executive compensation plans for a select group of management personnel and/or highly compensated associates. Multi-Employer Plans In addition to the plans listed above, the Company participates in the Central States Southeast and Southwest Pension Fund, the Michigan Conference of Teamsters and Ohio Conference of Teamsters Health and Welfare plans (collectively referred to as “multi-employer plans”), and other company-sponsored defined contribution plans for most associates covered by collective bargaining agreements. With respect to the Company’s participation in the Central States Plan, expense is recognized as contributions are funded. The Company’s contributions during the 12-week periods ended October 5, 2019 and October 6, 2018 were $2.4 million and $2.1 million, respectively. The Company’s contributions during the 40-week periods ended October 5, 2019 and October 6, 2018 were $10.6 million and $10.0 million, respectively. See Note 8 for further information regarding contingencies related to the Company’s participation in the Central States Plan.

Associate Retirement Plans

9 Months Ended

Oct. 05, 2019

Compensation And Retirement Disclosure [Abstract]

Note 10 – Associate Retirement Plans

During the 12- and 40- week periods ended October 5, 2019, the Company recognized net periodic postretirement benefit costs of $10.1 million and $19.3 million, respectively, related to the SpartanNash Company Pension Plan (“Pension Plan”) and $0.1 million and $0.3 million, respectively, related to the SpartanNash Retiree Medical Plan. During the 12- and 40- week periods ended October 6, 2018, the Company recognized net periodic pension income of $0.1 million and $0.3 million, respectively, and net periodic postretirement benefit costs of $0.1 million and $0.4 million, respectively for the aforementioned plans. Substantially all of these amounts are included in Postretirement benefit expense (income) in the condensed consolidated statements of operations.

On February 28, 2018, the Company’s Board of Directors granted approval to proceed with terminating the frozen Pension Plan. The Plan was terminated on July 31, 2018. The Company offered participants the option to receive an annuity or lump sum distribution which may be rolled over into another qualified plan. The distribution of assets to plan participants commenced in the second quarter and was completed in the third quarter of 2019. The Company has incurred pre-tax settlement charges in the amount of $18.2 million to recognize the deferred losses in AOCI upon distribution of the Plan assets, of which $9.4 million was recognized in the 12 weeks ended October 5, 2019. The Company also recognized other termination expenses of $1.3 million in 2019. The Company expects the Plan termination will reduce administrative fees and premium funding costs in future periods.

The Company did not make any contributions to the Pension Plan during the 40-week period ended October 5, 2019. The remaining overfunded Plan assets will be utilized by the Company to fund obligations associated with other qualified retirement programs. The Company expects to make total contributions of $0.4 million in 2019 to the Retiree Medical Plan and has made $0.3 million in the year-to-date period.

The Company’s retirement programs also include defined contribution plans providing contributory benefits, as well as executive compensation plans for a select group of management personnel and/or highly compensated associates.

Multi-Employer Plans

In addition to the plans listed above, the Company participates in the Central States Southeast and Southwest Pension Fund, the Michigan Conference of Teamsters and Ohio Conference of Teamsters Health and Welfare plans (collectively referred to as “multi-employer plans”), and other company-sponsored defined contribution plans for most associates covered by collective bargaining agreements.

With respect to the Company’s participation in the Central States Plan, expense is recognized as contributions are funded. The Company’s contributions during the 12-week periods ended October 5, 2019 and October 6, 2018 were $2.4 million and $2.1 million, respectively. The Company’s contributions during the 40-week periods ended October 5, 2019 and October 6, 2018 were $10.6 million and $10.0 million, respectively. See Note 8 for further information regarding contingencies related to the Company’s participation in the Central States Plan.