Partners Interest - Summary of Changes in Each Component of Accumulated Comprehensive Income Loss (Detail) - USD ($)
$ in Thousands |
3 Months Ended |
12 Months Ended |
Mar. 28, 2015 |
Mar. 29, 2014 |
Dec. 27, 2014 |
Dec. 28, 2013 |
Dec. 29, 2012 |
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Postretirement adjustment |
|
$ 2,164
|
$ (3,919)
|
$ 4,407
|
$ (3,648)
|
| Foreign currency translation adjustment |
$ (6,299)
|
|
(5,816)
|
|
|
| Change In Retirement Plans [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Beginning Balance |
(9,730)
|
(6,045)
|
(6,045)
|
(9,130)
|
(6,577)
|
| Foreign currency translation adjustment |
|
|
0
|
|
|
| Ending Balance |
|
|
(9,730)
|
(6,045)
|
(9,130)
|
| Change In Retirement Plans [Member] | Postretirement Liability Adjustment [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Postretirement adjustment |
|
|
(2,743)
|
3,085
|
(2,553)
|
| Change In Retirement Plans [Member] | Postretirement Curtailment Adjustment [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Postretirement adjustment |
|
|
(942)
|
|
|
| Foreign Currency Translation Adjustments [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Beginning Balance |
(5,816)
|
0
|
0
|
0
|
|
| Foreign currency translation adjustment |
|
|
(5,816)
|
|
|
| Ending Balance |
|
|
(5,816)
|
0
|
0
|
| Foreign Currency Translation Adjustments [Member] | Postretirement Liability Adjustment [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Postretirement adjustment |
|
|
0
|
|
|
| Foreign Currency Translation Adjustments [Member] | Postretirement Curtailment Adjustment [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Postretirement adjustment |
|
|
0
|
|
|
| Accumulated Other Comprehensive Loss (AOCI) [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Beginning Balance |
$ (15,546)
|
$ (6,045)
|
(6,045)
|
(9,130)
|
(6,577)
|
| Foreign currency translation adjustment |
|
|
(5,816)
|
|
|
| Ending Balance |
|
|
(15,546)
|
(6,045)
|
(9,130)
|
| Accumulated Other Comprehensive Loss (AOCI) [Member] | Postretirement Liability Adjustment [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Postretirement adjustment |
|
|
(2,743)
|
$ 3,085
|
$ (2,553)
|
| Accumulated Other Comprehensive Loss (AOCI) [Member] | Postretirement Curtailment Adjustment [Member] |
|
|
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
|
|
| Postretirement adjustment |
|
|
$ (942)
|
|
|