Summary of Significant Accounting Policies - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Accounts receivable, net	$ 1,773,620,000	$ 1,607,922,000
Allowance for doubtful accounts	15,361,000	17,230,000
Provision for doubtful accounts	2,123,000	7,264,000	$ 6,194,000
Non-cash expense for impairment of property, plant and equipment	$ 0	0	$ 0
Machinery and Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Machinery and Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Vehicles, Furniture and Fixtures, and Computer Hardware and Software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Vehicles, Furniture and Fixtures, and Computer Hardware and Software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
Buildings
Property, Plant and Equipment [Line Items]
Estimated useful life	25 years
Other Current Liabilities
Property, Plant and Equipment [Line Items]
Insurance liabilities, current	$ 44,600,000	47,300,000
Other Noncurrent Liabilities
Property, Plant and Equipment [Line Items]
Insurance liabilities, noncurrent	179,100,000	173,200,000
Prepaid Expenses and Other
Property, Plant and Equipment [Line Items]
Anticipated insurance recoveries, current	12,600,000	14,900,000
Other Assets
Property, Plant and Equipment [Line Items]
Anticipated insurance recoveries, noncurrent	49,300,000	$ 48,600,000
Accounting Standards Update 2016-02 [Member] | Minimum
Property, Plant and Equipment [Line Items]
New accounting pronouncement, effect of adoption	200,000,000
Accounting Standards Update 2016-02 [Member] | Maximum
Property, Plant and Equipment [Line Items]
New accounting pronouncement, effect of adoption	$ 225,000,000