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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 31, 2020
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,
 
2020
 
2019
Warranty liabilities, beginning of period
$
91,389

 
$
79,154

Reserves provided
15,039

 
12,262

Payments
(18,276
)
 
(16,130
)
Other adjustments
243

 
4,461

Warranty liabilities, end of period
$
88,395

 
$
79,747
Summary of Changes in Self-Insurance Liability Changes in these liabilities were as follows ($000's omitted):
 
Three Months Ended
 
March 31,
 
2020
 
2019
Balance, beginning of period
$
709,798

 
$
737,013

Reserves provided
18,449

 
17,396

Adjustments to previously recorded reserves
1,300

 
(3,875
)
Payments, net (a)
(10,375
)
 
(21,364
)
Balance, end of period
$
719,172

 
$
729,170



(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, 2020 were as follows ($000's omitted):
Years Ending December 31,
 
2020 (a)
$
13,802

2021
22,212

2022
20,306

2023
18,996

2024
13,328

Thereafter
26,508

Total lease payments (b)
115,152

Less: Interest (c)
18,376

Present value of lease liabilities (d)
$
96,776


(a)
Remaining payments are for the nine months ending December 31, 2020.
(b)
Lease payments include options to extend lease terms that are reasonably certain of being exercised and exclude $4.1 million of legally binding minimum lease payments for leases signed but not yet commenced at March 31, 2020.
(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 6.1 years and 5.7%, respectively, at March 31, 2020.