Quarterly Results (Unaudited) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended						12 Months Ended
	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Inventory adjustments NRV			$ 2,600					$ 2,600
Net realizable value adjustments (NRV) - land held for sale					$ 81,000		$ 11,489	83,576	$ 1,105
Litigation Settlement, Expense									15,000
Impairment Losses Related to Real Estate Partnerships					8,000		0	8,017	0
Write-off of insurance receivables			(9,300)	$ (5,300)		$ (15,000)
Loss on debt retirements							0	0	657
Adjustment to self insurance reserves		$ 37,900	(75,300)		(19,800)		(35,873)	(97,789)	(57,132)
Write-off of deposits and pre-acquisition costs	$ 9,600						16,992	11,367	17,157
Reserves provided	16,200						$ 16,130	(50)	506
Home Office Relocation [Member]
Costs associated with the relocation of corporate headquarters									$ 8,300
Florida [Member]
Product Warranty Expense								$ 12,400
Land inventory impairments
Cost of Goods and Services Sold	66,900		$ 57,500		31,500
NRV adjustments on land held for sale
Cost of Goods and Services Sold	$ 9,000				$ 81,000