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Debt Debt (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Jul. 18, 2021
Dec. 31, 2019
Line of Credit Facility [Line Items]      
Debt Instrument, Unused Borrowing Capacity, Amount $ 926,900    
Notes payable bank - homebuilding operations 0   $ 66,000
letters of credit outstanding under credit facility 61,000    
Maximum borrowing availability subject to limit 439,000    
Minimum Tangible Net Worth $ 813,400    
Leverage ratio 60.00%    
Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 600,000    
Sub-limit for letters of credit $ 125,000    
Line of Credit Facility, Expiration Date Jul. 18, 2021    
Basis Point Spread on Variable Rate 2.50%    
Line of Credit Facility, Current Borrowing Capacity $ 500,000 $ 475,000  
Extending Lenders Credit Facility Expiration Date Jul. 18, 2023    
libor floor 0.75%    
Non-Extending Lender Commitment $ 25,000    
Consolidated EBITDA [Member]      
Line of Credit Facility [Line Items]      
Interest Coverage Ratio 1.5    
Consolidated Interest Incurred [Member]      
Line of Credit Facility [Line Items]      
Interest Coverage Ratio 1.0    
2025 Senior Notes [Member]      
Line of Credit Facility [Line Items]      
Debt Instrument, Face Amount $ 250,000    
Debt Instrument, Interest Rate, Stated Percentage 5.625%    
2021 Senior Notes [Member]      
Line of Credit Facility [Line Items]      
Debt Instrument, Face Amount     $ 300,000
Debt Instrument, Interest Rate, Stated Percentage     6.75%
2028 Senior Notes [Member]      
Line of Credit Facility [Line Items]      
Debt Instrument, Face Amount $ 400,000    
Debt Instrument, Interest Rate, Stated Percentage 4.95%