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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
Summary of Changes in Warranty Liability Changes to warranty liabilities were as follows ($000’s omitted):
Three Months Ended
March 31,
20222021
Warranty liabilities, beginning of period$107,117 $82,744 
Reserves provided19,692 17,344 
Payments(19,674)(15,493)
Other adjustments(495)(788)
Warranty liabilities, end of period$106,640 $83,807 
Summary of Changes in Self-Insurance Liability Changes in these liabilities were as follows ($000's omitted):
Three Months Ended
March 31,
20222021
Balance, beginning of period$627,067 $641,779 
Reserves provided19,837 19,542 
Adjustments to previously recorded reserves2,139 (6,082)
Payments, net (a)
(4,765)(2,171)
Balance, end of period$644,278 $653,068 

(a)    Includes net changes in amounts expected to be recovered from our insurance carriers, which are recorded in other assets (see below).
Schedule of Future Minimum Lease Payments Required Under Leases
The future minimum lease payments required under our leases as of March 31, 2022 were as follows ($000's omitted):
Years Ending December 31,
2022 (a)
$17,220 
202323,694 
202416,859 
202511,612 
20268,465 
Thereafter18,912 
Total lease payments (b)
96,762 
Less: Interest (c)
(8,263)
Present value of lease liabilities (d)
$88,499 

(a)Remaining payments are for the nine months ending December 31, 2022.
(b)Lease payments include options to extend lease terms that are reasonably certain of being exercised and exclude $3.1 million of legally binding minimum lease payments for leases signed but not yet commenced at March 31, 2022.
(c)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.
(d)The weighted average remaining lease term and weighted average discount rate used in calculating our lease liabilities were 5.2 years and 5.5%, respectively, at March 31, 2022.