Other and Intangible Assets, Net - Schedule of Changes to Goodwill by Reportable Segment (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
Goodwill [Line Items]
Balance at January 1, 2018	$ 747,106
Acquisitions	60,086
Impairments	(9,815)
Finalization of Isle Purchase Price Accounting	(6,109)
Assets Held for Sale	(3,122)
Balance at September 30, 2018	788,146
West Segment
Goodwill [Line Items]
Balance at January 1, 2018	152,775
Finalization of Isle Purchase Price Accounting	(14)
Balance at September 30, 2018	152,761
Midwest Segment
Goodwill [Line Items]
Balance at January 1, 2018	327,088
Finalization of Isle Purchase Price Accounting	(4,343)
Balance at September 30, 2018	322,745
South Segment
Goodwill [Line Items]
Balance at January 1, 2018	200,417
Impairments	(9,815)
Finalization of Isle Purchase Price Accounting	(1,752)
Balance at September 30, 2018	188,850
East Segment
Goodwill [Line Items]
Balance at January 1, 2018	66,826
Assets Held for Sale	(3,122)
Balance at September 30, 2018	63,704
Central Segment
Goodwill [Line Items]
Acquisitions	60,086
Balance at September 30, 2018	$ 60,086