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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 31, 2023
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,
20232022
Warranty liabilities, beginning of period$108,348 $107,117 
Reserves provided20,371 19,692 
Payments(24,134)(19,674)
Other adjustments1,395 (495)
Warranty liabilities, end of period$105,980 $106,640 
Summary of Changes in Self-Insurance Liability Changes in these liabilities were as follows ($000's omitted):
Three Months Ended
March 31,
20232022
Balance, beginning of period$635,857 $627,067 
Reserves provided24,121 19,837 
Adjustments to previously recorded reserves(564)2,139 
Payments, net (a)
(6,669)(4,765)
Balance, end of period$652,745 $644,278 

(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, 2023 were as follows ($000's omitted):
Years Ending December 31,
2023 (a)
$20,806 
202423,521 
202515,765 
202611,998 
20279,414 
Thereafter15,639 
Total lease payments (b)
97,143 
Less: Interest (c)
(7,724)
Present value of lease liabilities (d)
$89,419 

(a)Remaining payments are for the nine months ending December 31, 2023.
(b)Lease payments include options to extend lease terms that are reasonably certain of being exercised and exclude $2.2 million of legally binding minimum lease payments for leases signed but not yet commenced at March 31, 2023.
(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 4.9 years and 5.4%, respectively, at March 31, 2023.