Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 481,109	$ 437,857
Gain (Loss) on Hedging Activity	(3,400)	3,000
Midwest Homebuilding [Member]
Disaggregation of Revenue [Line Items]
Revenues	200,362	158,620
Southern Homebuilding [Member]
Disaggregation of Revenue [Line Items]
Revenues	208,544	190,388
Mid-Atlantic Homebuilding [Member]
Disaggregation of Revenue [Line Items]
Revenues	60,420	73,823
Financial Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	11,783	15,026
Land [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,018	4,407
Construction [Member]
Disaggregation of Revenue [Line Items]
Revenues	466,308	418,424
Financial Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 11,783	$ 15,026