Multiemployer Pension Plans - Additional Information (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Multiemployer Plans [Line Items]
Multiemployer plans surcharge percentage	50.00%
Multiemployer plan, contributions	$ 17,052	$ 16,439
Collective Bargaining Agreements
Multiemployer Plans [Line Items]
Multiemployer plan, contributions	$ 44,600	$ 43,800
Multiemployer Plans, Pension
Multiemployer Plans [Line Items]
Multiemployer plans number of employer	40
Multiemployer Plans, Pension \| Pension Protection Act
Multiemployer Plans [Line Items]
Multiemployer plans surcharge percentage	5.00%
Multiemployer Plans, Pension \| Retirement Benefit Plan
Multiemployer Plans [Line Items]
Multiemployer plans surcharge percentage	10.00%

Amount of contributions made to multiemployer plan by employer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

Name:	us-gaap_MultiemployerPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration