Retirement Plans and Benefits (Tables)
12 Months Ended
Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Retirement Plans and Benefits
The following table contains a summary of plan information relating to the Company’s participation in multiemployer pension plans, including Company contributions for the last three years, status of the multiemployer plan, and whether the plan is subject to a funding improvement, rehabilitation plan or contribution surcharges. Information has been presented separately for individually significant plans (defined as plans that make up 70 to 80 percent of the total Company defined benefit contributions and any plan that exceeds individual contributions of $0.1 million in any plan year presented).
 
Fund
 
EIN/PN
 
PPA
Zone
Status
(1)
 
Plan Year
End for
Zone
Status
 
Subject to
Funding
Improvement/
Rehabilitation
Plan(2)
 
2015
Contributions (in thousands)
 
2014
Contributions (in thousands)
 
2013
Contributions (in thousands)
 
Sur-charge Impose
 
Expiration
Date of
Collective
Bargaining
Agreement
Boilermaker-Blacksmith National Pension Trust
 
48-6168020/ 001
 
Yellow
 
12/31/2015
 
Implemented
 
$
208

 
$
1,009

 
$
380

 
No
 
10/31/2017
Pennsylvania Heavy and Highway Contractors Pension Trust
 
23-6531755/ 001
 
Green
 
12/31/2014
 
No
 
$
1,086

 
$
7,210

 
$
1,171

 
No
 
5/31/2016
Other Funds
 
 
 
 
 
 
 
 
 
$
43

 
$
36

 
$
123

 
 
 
 
Total Contributions:
 
 
 
 
 
 
 
 
 
$
1,337

 
$
8,255

 
$
1,674

 
 
 
 
 
(1)
The zone status is based on information that the Company received from the plan as well as publicly available information per the Department of Labor website and is certified by the plan’s actuary. Among other factors, plans in the red zone are generally less than 65 percent funded, plans in the yellow zone are less than 80 percent funded, and plans in the green zone are at least 80 percent funded.
(2)
The “Subject to Funding Improvement / Rehabilitation Plan” column indicates plans for which a financial improvement plan (FIP) or a rehabilitation plan (RP) is either pending or has been implemented. The last column lists the expiration date(s) of the collective-bargaining agreement(s) to which the plans are subject.