Recently Issued Accounting Standards (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jan. 01, 2019	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to opening balance (less than)	$ 711,666		$ 433,126
Operating Lease, Liability, Statement of Financial Position [Extensible List]				us-gaap:OtherLiabilities
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]				us-gaap:PrepaidExpenseAndOtherAssets
Homebuilding Segment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset	29,226		30,277
Operating lease liability	$ 30,221		$ 30,830
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to opening balance (less than)		$ 100
Accounting Standards Update 2016-02 | Homebuilding Segment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset				$ 34,200
Operating lease liability				$ 34,300
Accounting Standards Update 2014-09 | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to opening balance (less than)					$ 1,800