Employee Benefits - Additional Information (Details)		12 Months Ended
	Jun. 01, 2011	Dec. 31, 2019 USD ($) employee	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of employees sponsored by defined benefit pension plans | employee		9,000
Underfunded status of plans		$ 228,800,000	$ 198,300,000
Plan assets expected to be returned		0
Settlement adjustment		1,800,000	10,900,000	$ 7,600,000
Unrecognized actuarial losses before tax		396,300,000	$ 358,600,000
Unrecognized actuarial losses net of tax		372,100,000
Actuarial loss included in accumulated other comprehensive loss and expected to be recognized next year		15,000,000
Expected amortization of prior service credit next fiscal year		$ (400,000)
Expected rate of return on assets		7.00%	7.00%	7.00%
Expected employer contribution in next fiscal year		$ 31,500,000
Income tax expense (benefit) related to amounts in other comprehensive income		(300,000)	$ (100,000)	$ 13,300,000
Employer pension contribution percentage	25.00%
Employer discretionary contribution amount		12,800,000	13,300,000	10,300,000
Annual Incentive Plan
Defined Benefit Plan Disclosure [Line Items]
Incentive accruals		0	29,800,000	0
Pension
Defined Benefit Plan Disclosure [Line Items]
Contribution to the multi-employer plan		$ 128,800,000	$ 112,600,000	$ 97,800,000
Increase in annual future employer contribution		3.50%
Pension | Minimum
Defined Benefit Plan Disclosure [Line Items]
Minimum contribution percentage			5.00%	5.00%
Multiemployer plan, additional surcharge required contribution rate		5.00%
Pension | Maximum
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plan, additional surcharge required contribution rate		10.00%
Workforce Subject to Collective Bargaining Arrangements | Labor Force Concentration Risk
Defined Benefit Plan Disclosure [Line Items]
Percentage of labor force		79.00%