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EMPLOYEE RELATED LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2015
Postretirement Medical Plan [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Schedule of Net Periodic Benefit Cost
   
Year ended
December 31, 2015
   
Year ended
December 31, 2014
   
Year ended
December 31, 2013
 
Net periodic benefit cost:
             
Service cost
  $ 29     $ 24     $ 32  
Interest cost
    126       118       126  
Amortization of prior service costs
    (973 )     (1,737 )     (1,703
Amortization of net (gain) or loss
    (115 )     (227 )     (132 )
Total net periodic benefit cost
  $ (933 )   $ (1,822 )   $ (1,677
Schedule of Amounts Recognized in Other Comprehensive Income
Other changes in plan assets and benefits obligations recognized in other comprehensive income:
 
Prior service cost for the period
$ --   $ --
  $ (91 )
Net (gain) or loss for the period
  (1,333   558 
    (668 )
Amortization of prior service costs
  973     1,737       1,703  
Amortization of net gain or (loss)
  115     227       132  
Total recognized in other comprehensive income (expense)
$ (245 $ 2,522     $ 1,076
Total recognized in net periodic benefit cost and other comprehensive income
$ (1,178 $        700 
  $   (601 )
Schedule of Impact of One-Percentage-Point Change in Assumed Health Care Cost
    Increase     Decrease  
Effect on service cost and interest cost
  $ 15   $ (12)  
Effect on post-retirement benefit obligation
  $ 104   $ (82)  
Schedule of changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status
   
Year ended
December 31,
2015
   
Year ended
December 31,
2014
   
Year ended
December 31,
2013
 
Change in benefit obligation:
             
Benefit obligation at beginning of period
  $ 2,977     $ 2,317     $ 2,995  
Service cost
    29       24       32  
Interest cost
    126       118       126  
Benefits paid
    (18     (40 )     (77 )
Change in plan provisions
    --       --
    (91 )
Actuarial loss (gain)
    (1,333     558
    (668 )
Benefit obligation end of period
  $ 1,781     $ 2,977     $ 2,317  
Change in plan assets:
                       
Fair value of plan assets at beginning of period
  $ --     $ --     $ --  
Employer contribution
    18       40       77  
Benefits paid
    (18     (40 )     (77 )
Fair value of plan assets at end of period
  $ --     $ --     $ --  
Funded status
  $ (1,781   $ (2,977 )   $ (2,317 )
Schedule of Amounts Recognized in Statement of Financial Position
   
As of
December 31, 2015
   
As of
December 31, 2014
   
As of
December 31, 2013
 
Amounts recognized in statement of financial position:
 
Current liabilities
 
(40 )     (83 )     (89 )
Non-current liabilities
    (1,741 )     (2,894 )     (2,228 )
Net amount recognized 
         $ (1,781 )   $ (2,977 )   $ (2,317 )
Weighted average assumptions used:
 
Discount rate
    4.80 %     4.30 %     5.20 %
Rate of compensation increases
    N/A       N/A       N/A  
Assumed health care cost trend rates:
 
Health care cost trend rate assumed for next year
(pre 65/ post 65)
    6.75%/10.00 %     7.00%/20.00 %     7.75/25.00 %
Ultimate rate (pre 65/ post 65)
    4.50%/5.00 %     4.50%/5.00 %     5.00/5.00 %
Year the ultimate rate is reached (pre 65/ post 65)
    2025/2022       2025/2022       2022/2022  

Schedule of Future Benefit Payments
Fiscal Year
   
Other Benefits
2016
    $ 40  
2017
      54  
2018
      60  
2019
      71  
2020
      78  
2021-2025     $ 434  
Schedule of Weighted Average Assumptions Used
 
 
Weighted average assumptions used:
 
Discount rate
  4.30 %     5.20 %     4.30 %
Expected return on plan assets
  N/A       N/A       N/A  
Rate of compensation increases
    N/A       N/A       N/A  
Schedule of Health Care Cost Trend Rates
Assumed health care cost trend rates:
Health care cost trend rate assumed for current year (Pre-65/Post-65)
    7.00%/20.00 %     7.75%/25.00 %     8.25/35.00 %
Ultimate rate (Pre-65/Post-65)
    4.50%/5.00 %     5.00%/5.00 %     5.00/5.00 %
Year the ultimate rate is reached (Pre-65/Post-65)
    2025/2022       2022/2022       2022/2022  
Measurement date
 
December 31, 2015
   
December 31, 2014
   
December 31, 2013
Pension Plan [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Schedule of Net Periodic Benefit Cost
   
Year ended
December 31, 2015
   
Year ended
December 31, 2014
   
Year ended
December 31, 2013
 
Net periodic benefit cost:
             
Interest cost
  798       796       732  
Expected return on plan assets
  (1,130     (1,257 )     (948 )
Amortization of prior service costs
  3       3       --  
Amortization of net (gain) or loss
  31       --       97  
Total net periodic benefit cost
$ (298   $ (458 )   $ (119 )
Schedule of Amounts Recognized in Other Comprehensive Income
Other changes in plan assets and benefits obligations recognized in other comprehensive income:
                     
Prior service cost for the period
--
$   --     $ 93  
Net (gain) or loss for the period
  6     3,117
    (4,696
Amortization of prior service costs
  (3   (3 )     --  
Amortization of net gain or (loss)
  (31   --
    (97 )
Total recognized in other comprehensive income (expense)
$ (28 $ 3,114
  $ (4,700
Total recognized in net periodic benefit cost and other comprehensive income (expense)
$ (326 $ 2,656
  $ (4,819
Schedule of Estimated Amounts in Accumulated Other Comprehensive Income to be Recognized over the Next Fiscal Year

   
Year ended
December 31, 2015
   
Year ended
December 31, 2014
   
Year ended
December 31, 2013
 
Estimated amounts that will be amortized from accumulated other comprehensive income in
the next fiscal year ending :
 
Prior service cost
    3       3       3  
Net actuarial (gain) or loss
  $ 33     $ 31     $ --  
Schedule of changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status
   
Year ended
December 31, 2015
   
Year ended
December 31, 2014
   
Year ended
December 31, 2013
 
Change in benefit obligation:
             
Benefit obligation at beginning of period
  $ 19,304     $ 15,873     $ 17,272  
Interest cost
    798       796       732  
Benefits paid
    (451     (532 )     (437 )
Change in plan provisions
    --       --       93  
Actuarial loss (gain)
    (1,046     3,167
    (1,787 )
Benefit obligation end of period
  $ 18,605     $ 19,304     $ 15,873  
Change in plan assets
                       
Fair value of plan assets at beginning of period
  $ 18,134     $ 16,652     $ 12,543  
Actual return on plan assets
    78       1,307       3,857  
Employer contribution
    765       707       689  
Benefits paid
    (451     (532 )     (437 )
Fair value of plan assets at end of period
  $ 18,526     $ 18,134     $ 16,652  
Funded status
  $ (79   $ (1,170   $ 779
Accumulated benefit obligation
  $ 18,605     $ 19,304     $ 15,873  
Schedule of Amounts Recognized in Statement of Financial Position
Amounts recognized in statement of financial position
Non-current assets
        $ --     $ --  
$ 779  
Non-current liabilities
    (79     (1,170 )     --  
Net amount recognized
  $ (79 )   $ (1,170 )   $   779  
Weighted average assumptions used
Discount rate
    4.60 %     4.20 %     5.10
Rate of compensation increases
    N/A       N/A       N/A  

Schedule of Future Benefit Payments
Fiscal Year
   
Other Benefits
 
2016
    $ 650  
2017
      731  
2018
      805  
2019
      866  
2020
      937
2021-2025     $ 5,446  
Schedule of Weighted Average Assumptions Used
Weighted average assumptions used:
                       
Discount rate
    4.20 %     5.10 %     4.30 %
Expected return on plan assets
    6.20 %     7.50 %     7.50 %
Rate of compensation increases
    N/A       N/A       N/A  
Schedule of Weighted Average Asset Allocations
Asset Category:
 
December 31, 2015
   
Target allocation 
2016
 
Equity securities
    62 %     60 %
Debt securities
    38 %     40 %
Real estate
     0      0
Other 
     0      0
Total
    100 %     100 %
Schedule of Assets Measured at Fair Value on a Recurring Basis
   
Level 1
   
Level 2
   
Level 3
 
Investments in mutual funds
  $ --     $ 18,526     $ --  
Total plan assets at fair value
  $ --     $ 18,526     $ --