Financial Statement Information Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	$ 1,800,760		$ 1,800,760		$ 1,476,716
Less—Accumulated depreciation	(661,819)		(661,819)		(606,112)
Property, Plant and Equipment, Net	1,188,464		1,188,464		913,089
Depreciation	39,000	$ 32,000	76,000	$ 59,000
Land and improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	187,210		187,210		137,790
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	367,550		367,550		233,078
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	601,967		601,967		521,526
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	142,363		142,363		133,753
Vehicles And Trailers [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	171,639		171,639		161,269
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	50,772		50,772		31,794
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	279,259		279,259		257,506
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	49,523		$ 49,523		$ 42,485
Minimum | Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			10 years
Minimum | Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			20 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			3 years
Minimum | Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			3 years
Minimum | Vehicles And Trailers [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			3 years
Minimum | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			5 years
Maximum | Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			20 years
Maximum | Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			40 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			20 years
Maximum | Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			10 years
Maximum | Vehicles And Trailers [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			10 years
Maximum | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life			7 years
Stahlgruber [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	257,142		$ 257,142
Property, Plant and Equipment, Net	260,638		260,638
Stahlgruber [Member] | Land and improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	47,281		47,281
Stahlgruber [Member] | Buildings and improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	125,649		125,649
Stahlgruber [Member] | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	49,384		49,384
Stahlgruber [Member] | Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	3,760		3,760
Stahlgruber [Member] | Vehicles And Trailers [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	643		643
Stahlgruber [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	28,535		28,535
Stahlgruber [Member] | Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	1,890		1,890
Stahlgruber [Member] | Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment excluding construction in progress, gross	$ 3,496		$ 3,496