Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Employee Benefit Plans [Abstract]

Multiemployer Pension Plan

											Expiration
	EIN/Pension Plan										Date of
	Number/	Pension Protection Act		FIP/RP							Collective
	Registration	Zone Status (a)		Status	Company Contributions						Bargaining
Plan Name	Number	2019	2018	(a),(b)	2019		2018		2017		Agreement
Local 731, I.B. of T., Private Scavengers, Garage Attendants, and Textile Maintenance Pension Trust Fund	36-6513567 - 001	Green for the plan year ended 9/30/2019	Green for the plan year ended 9/30/2017	Not applicable	$	4,570	$	4,600	$	4,342	9/30/2023
Western Conference of Teamsters Pension Trust	91-6145047 - 001	Green	Green	Not applicable		4,550		4,399		4,191	12/31/2019 to 7/31/2022
Suburban Teamsters of Northern Illinois Pension Fund	36-6155778 - 001	Green for the plan year beginning 1/1/2019	Yellow	Not applicable		1,844		1,569		877	1/31/2024
Teamster Local 301 Pension Fund	36-6492992 - 001	Green	Green	Not applicable		624		581		489	9/30/2023
Automobile Mechanics’ Local No. 701 Union and Industry Pension Fund	36-6042061 - 001	Yellow	Yellow	Implemented		492		484		837	12/31/2022
Midwest Operating Engineers Pension Plan	36-6140097 - 001	Green for the plan year beginning 4/1/2019	Yellow for the plan year ended 3/31/2017	Not applicable		339		289		207	10/31/2020
Locals 302 & 612 of the IOUE - Employers Construction Industry Retirement Plan	91-6028571 - 001	Green	Green	Not applicable		290		284		275	11/16/2022
Local 813 Pension Trust Fund	13-1975659 - 001	Critical	Critical	Implemented		281		165		158	11/30/2019
IAM National Pension Fund	51-6031295 - 002	Green	Green	Not applicable		256		240		215	12/31/2022
International Union of Operating Engineers Pension Trust	85512-1	Green as of 4/30/2017	Green as of 4/30/2017	Not applicable		238		224		219	3/31/2020 to 3/31/2021
Multi-Sector Pension Plan	1085653	Green as of 1/1/2019	Green	Not applicable		202		191		228	12/31/2018
					$	13,686	$	13,026	$	12,038

(a) Unless otherwise noted in the table above, the most recent Pension Protection Act zone status available in 2019 and 2018 is for the plans’ years ended December 31, 2018 and 2017, respectively.

(b) The “FIP/RP Status” column indicates plans for which a Funding Improvement Plan (“FIP”) or a Rehabilitation Plan (“RP”) has been implemented.

(c) A multiemployer defined benefit pension plan that has been certified as endangered, seriously endangered or critical may begin to levy a statutory surcharge on contribution rates. Once authorized, the surcharge is at the rate of 5% for the first 12 months and 10% for any periods thereafter, until certain conditions are met. The Company was not required to pay a surcharge to these plans during the years ended December 31, 2019 and 2018.