Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 623,686	$ 558,098	$ 1,104,795	$ 995,955
Gain (Loss) on Hedging Activity	(2,600)	200	(6,000)	3,200
Northern Homebuilding [Member]
Disaggregation of Revenue [Line Items]
Revenues	252,870	226,902	453,232	385,522
Southern Homebuilding [Member]
Disaggregation of Revenue [Line Items]
Revenues	356,513	319,320	625,477	583,531
Financial Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	14,303	11,876	26,086	26,902
Land [Member]
Disaggregation of Revenue [Line Items]
Revenues	11,513	1,188	14,531	5,595
Construction [Member]
Disaggregation of Revenue [Line Items]
Revenues	597,870	545,034	1,064,178	963,458
Financial Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 14,303	$ 11,876	$ 26,086	$ 26,902