Associate Retirement Plans	4 Months Ended
Apr. 20, 2019
Compensation And Retirement Disclosure [Abstract]
Associate Retirement Plans	Note 9 – Associate Retirement Plans During the 16 week periods April 20, 2019 and April 21, 2018, the Company recognized net periodic pension expense of $0.4 million and income of $0.1 million, respectively, related to the SpartanNash Company Pension Plan (“Pension Plan” or “Plan”) and net postretirement benefit costs of $0.1 million in both periods related to the SpartanNash Retiree Medical Plan. Substantially all of these amounts are included in Other, net in the Condensed Consolidated Statements of Earnings. 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 will offer 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 is expected to be completed in the third quarter of 2019. The Company will incur a one-time, pre-tax settlement charge estimated to be $20 to $21 million to recognize the deferred losses in AOCI upon distribution of the Plan assets and related recognition of the settlement as well as other termination expenses. 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 16 week period ended April 20, 2019. The Company expects to make contributions of up to $0.5 million in 2019 to the Pension Plan depending on actual termination costs and the value of Pension Plan assets upon final distribution. The Company expects to make contributions of $0.4 million in 2019 to the Retiree Medical Plan. 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 16 week periods ended April 20, 2019 and April 21, 2018 were $4.8 million and $4.5 million, respectively. See Note 7 for further information regarding contingencies related to the Company’s participation in the Central States Plan.

Associate Retirement Plans

4 Months Ended

Apr. 20, 2019

Compensation And Retirement Disclosure [Abstract]

Note 9 – Associate Retirement Plans

During the 16 week periods April 20, 2019 and April 21, 2018, the Company recognized net periodic pension expense of $0.4 million and income of $0.1 million, respectively, related to the SpartanNash Company Pension Plan (“Pension Plan” or “Plan”) and net postretirement benefit costs of $0.1 million in both periods related to the SpartanNash Retiree Medical Plan. Substantially all of these amounts are included in Other, net in the Condensed Consolidated Statements of Earnings.

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 will offer 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 is expected to be completed in the third quarter of 2019. The Company will incur a one-time, pre-tax settlement charge estimated to be $20 to $21 million to recognize the deferred losses in AOCI upon distribution of the Plan assets and related recognition of the settlement as well as other termination expenses. 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 16 week period ended April 20, 2019. The Company expects to make contributions of up to $0.5 million in 2019 to the Pension Plan depending on actual termination costs and the value of Pension Plan assets upon final distribution. The Company expects to make contributions of $0.4 million in 2019 to the Retiree Medical Plan.

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 16 week periods ended April 20, 2019 and April 21, 2018 were $4.8 million and $4.5 million, respectively. See Note 7 for further information regarding contingencies related to the Company’s participation in the Central States Plan.