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Commitments And Contingencies (Tables)
 12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Summary of Changes in Loan Origination Liability Changes in these liabilities were as follows ($000's omitted): 
202120202019
Liabilities, beginning of period$11,969 $25,159 $50,282 
Reserves provided (released), net618 26,410 (225)
Payments(206)(39,600)(24,898)
Liabilities, end of period$12,381 $11,969 $25,159 
Summary of Changes in Warranty Liability Changes in warranty liabilities were as follows ($000’s omitted): 
202120202019
Warranty liabilities, beginning of period$82,744 $91,389 $79,154 
Reserves provided93,919 64,492 60,818 
Payments(73,760)(70,869)(75,635)
Other adjustments (a)
4,214 (2,268)27,052 
Warranty liabilities, end of period$107,117 $82,744 $91,389 
Summary of Changes in Self-insurance Liability Changes in these liabilities were as follows ($000's omitted):
202120202019
Balance, beginning of period$641,779 $709,798 $737,013 
Reserves provided90,863 83,912 83,209 
Adjustments to previously recorded reserves(81,131)(93,431)(49,437)
Payments, net (a)
(24,444)(58,500)(60,987)
Balance, end of period$627,067 $641,779 $709,798 
Schedule of Future Minimum Lease Payments Required Under Leases The future minimum lease payments required under our leases as of December 31, 2021 were as follows ($000's omitted):
Years Ending December 31,
2022$22,780 
202323,624 
202416,788 
202511,528 
20268,261 
Thereafter18,692 
Total lease payments (a)
101,673 
Less: Interest (b)
(9,010)
Present value of lease liabilities (c)
$92,663 

(a)     Lease payments include options to extend lease terms that are reasonably certain of being exercised and exclude $3.0 million of legally binding minimum lease payments for leases signed but not yet commenced at December 31, 2021.
(b)     Our leases do not provide a readily determinable implicit rate. Therefore, we must estimate our discount rate for such leases to determine the present value of lease payments at the lease commencement date.
(c)     The weighted average remaining lease term and weighted average discount rate used in calculating our lease liabilities were 5.3 years and 5.5%, respectively, at December 31, 2021.