PENSION AND OTHER POSTRETIREMENT BENEFITS (Schedule of Fair Value Assumptions of Plan Assets) (Details) (USD $) | Mar. 29, 2015 | Dec. 28, 2014 |
In Thousands, unless otherwise specified |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | $104,070 | $113,552 |
Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 60 | 33 |
Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 104,010 | 113,519 |
Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Cash and cash equivalents [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 60 | 33 |
Cash and cash equivalents [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 60 | 33 |
Cash and cash equivalents [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Cash and cash equivalents [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Large U.S. equity funds [Member] | Pooled separate accounts [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 4,125 | 4,147 |
Large U.S. equity funds [Member] | Pooled separate accounts [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Large U.S. equity funds [Member] | Pooled separate accounts [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 4,125 | 4,147 |
Large U.S. equity funds [Member] | Pooled separate accounts [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Large U.S. equity funds [Member] | Common collective trusts funds [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 26,731 | 29,964 |
Large U.S. equity funds [Member] | Common collective trusts funds [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Large U.S. equity funds [Member] | Common collective trusts funds [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 26,731 | 29,964 |
Large U.S. equity funds [Member] | Common collective trusts funds [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Small/Mid U.S. equity funds [Member] | Pooled separate accounts [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 1,101 | 1,062 |
Small/Mid U.S. equity funds [Member] | Pooled separate accounts [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Small/Mid U.S. equity funds [Member] | Pooled separate accounts [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 1,101 | 1,062 |
Small/Mid U.S. equity funds [Member] | Pooled separate accounts [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Small/Mid U.S. equity funds [Member] | Common collective trusts funds [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 15,530 | 18,411 |
Small/Mid U.S. equity funds [Member] | Common collective trusts funds [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Small/Mid U.S. equity funds [Member] | Common collective trusts funds [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 15,530 | 18,411 |
Small/Mid U.S. equity funds [Member] | Common collective trusts funds [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
International equity funds [Member] | Pooled separate accounts [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 1,746 | 1,719 |
International equity funds [Member] | Pooled separate accounts [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
International equity funds [Member] | Pooled separate accounts [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 1,746 | 1,719 |
International equity funds [Member] | Pooled separate accounts [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
International equity funds [Member] | Common collective trusts funds [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 17,075 | 19,730 |
International equity funds [Member] | Common collective trusts funds [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
International equity funds [Member] | Common collective trusts funds [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 17,075 | 19,730 |
International equity funds [Member] | Common collective trusts funds [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Fixed income funds [Member] | Pooled separate accounts [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 6,619 | 6,609 |
Fixed income funds [Member] | Pooled separate accounts [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Fixed income funds [Member] | Pooled separate accounts [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 6,619 | 6,609 |
Fixed income funds [Member] | Pooled separate accounts [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Fixed income funds [Member] | Common collective trusts funds [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 31,083 | 31,877 |
Fixed income funds [Member] | Common collective trusts funds [Member] | Level 1 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 0 | 0 |
Fixed income funds [Member] | Common collective trusts funds [Member] | Level 2 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | 31,083 | 31,877 |
Fixed income funds [Member] | Common collective trusts funds [Member] | Level 3 [Member] | | |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] | | |
Fair value of plan assets | $0 | $0 |