Segment Information - Schedule of Balance Sheet Information for Reportable Segments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 6,114,518	$ 5,911,462
Goodwill	1,008,316	1,008,316
Corporate, Other & Eliminations
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	(1,623,183)	(1,737,383)
West Segment
Segment Reporting Asset Reconciling Item [Line Items]
Goodwill	220,861	220,861
West Segment | Operating Segment
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	1,829,237	1,710,375
Midwest Segment
Segment Reporting Asset Reconciling Item [Line Items]
Goodwill	322,745	322,745
Midwest Segment | Operating Segment
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	1,285,862	1,245,521
South Segment
Segment Reporting Asset Reconciling Item [Line Items]
Goodwill	213,150	213,150
South Segment | Operating Segment
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	1,145,605	1,068,258
East Segment
Segment Reporting Asset Reconciling Item [Line Items]
Goodwill	177,486	177,486
East Segment | Operating Segment
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	1,968,176	2,166,730
Central Segment
Segment Reporting Asset Reconciling Item [Line Items]
Goodwill	74,074	74,074
Central Segment | Operating Segment
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 1,508,821	$ 1,457,961