XML 96 R77.htm IDEA: XBRL DOCUMENT v3.6.0.2
Associate Retirement Plans - Schedule of Benefit Obligations, Pension & Postretirement Benefit Plans (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Fair value of plan assets:      
Balance at beginning of year $ 84,753    
Balance at end of year 81,982 $ 84,753  
Components of net amount recognized in financial position:      
Noncurrent liabilities (16,266) (16,008)  
SpartanNash Company Pension Plan [Member]      
Projected/Accumulated benefit obligation:      
Balance at beginning of year 83,398 93,034  
Interest cost 2,977 3,325 $ 4,223
Actuarial loss (gain) 1,598 (4,985)  
Benefits paid (7,623) (7,976)  
Balance at end of year 80,350 83,398 93,034
Fair value of plan assets:      
Balance at beginning of year 84,753 93,718  
Actual return on plan assets 4,852 (1,639)  
Company contributions   650  
Benefits paid (7,623) (7,976)  
Balance at end of year 81,982 84,753 93,718
Funded (unfunded) status 1,632 1,355  
Components of net amount recognized in financial position:      
Noncurrent assets 1,632 1,355  
Net asset (liability) 1,632 1,355  
Amounts recognized in accumulated other comprehensive income:      
Net actuarial loss 16,938 17,322  
Accumulated other comprehensive loss $ 16,938 $ 17,322  
Weighted average assumptions at measurement date:      
Discount rate 3.82% 4.04%  
Expected return on plan assets 4.83% 5.05%  
SpartanNash Medical Plan [Member]      
Projected/Accumulated benefit obligation:      
Balance at beginning of year $ 9,179 $ 9,905  
Service cost 187 231 186
Interest cost 345 404 394
Actuarial loss (gain) 213 (1,117)  
Benefits paid (261) (244)  
Balance at end of year 9,663 9,179 $ 9,905
Fair value of plan assets:      
Company contributions 261 244  
Benefits paid (261) (244)  
Funded (unfunded) status (9,663) (9,179)  
Components of net amount recognized in financial position:      
Current liabilities (412) (340)  
Noncurrent liabilities (9,251) (8,839)  
Net asset (liability) (9,663) (9,179)  
Amounts recognized in accumulated other comprehensive income:      
Net actuarial loss 1,434 1,263  
Prior service credit (408) (566)  
Accumulated other comprehensive loss $ 1,026 $ 697  
Weighted average assumptions at measurement date:      
Discount rate 4.26% 4.55%  
Ultimate health care cost trend rate 5.00% 5.00%