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Commitments And Contingencies (Narrative) (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2015
USD ($)
claim
Sep. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Jun. 30, 2014
USD ($)
Dec. 31, 2015
USD ($)
claim
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2012
USD ($)
Loss Contingencies [Line Items]                  
Loss Contingency, Pending Claims, Number | claim 1,000         1,000      
Loss Contingency Accrual, Period Increase (Decrease)             $ 18,600    
Adjustment to self insurance reserves $ (29,600)     $ (15,200) $ 84,500 $ (62,200) 69,300    
Future minimum sublease rental income 2,500         2,500      
Operating lease rent expense           27,700 25,300 $ 23,000  
Accrued liabilities for outstanding community development district obligations 11,964     17,122   11,964 17,122    
Letters of credit outstanding, amount 191,300     212,100   191,300 212,100    
Surety Bonds Outstanding 1,000,000     1,000,000   1,000,000 1,000,000    
Charges related to contractual dispute           $ 20,000   41,200  
Maximum product warranty in years           10 years      
Self-insurance liabilities $ 692,053     $ 710,245   $ 692,053 $ 710,245 $ 668,100 $ 721,284
Incurred but not reported percentage of liability reserves 65.00%     72.00%   65.00% 72.00%    
Payments for Legal Settlements   $ (5,700) $ (26,900)     $ (32,600)