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v3.21.2

Commitments and Contingencies (Narrative) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2021 USD ($) claim | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) claim | Sep. 30, 2020 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2020 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Letters of credit outstanding | $ 282,300 |  | $ 282,300 |  |  | $ 249,700 |  |
Surety bonds outstanding | 1,800,000 |  | $ 1,800,000 |  |  | 1,500,000 |  |
Maximum product warranty in years |  |  | 10 years |  |  |  |  |
Self-insurance liabilities | $ 624,662 | $ 652,546 | $ 624,662 | $ 652,546 | $ 620,617 | $ 641,779 | $ 640,014 | $ 709,798
Incurred but not reported percentage of liability reserves | 70.00% |  | 70.00% |  |  | 68.00% |  |
Adjustments to previously recorded reserves | $ (1,349) | 0 | $ (56,567) | (59,362) |  |  |  |
ROU assets | 78,000 |  | 78,000 |  |  | $ 71,300 |  |
Operating lease liabilities | 96,932 |  | 96,932 |  |  | 91,400 |  |
Additional ROU assets under operating leases | 2,100 |  | 15,200 | 13,000 |  |  |  |
Payments on lease liabilities | 5,100 | 4,800 | 15,600 | 14,800 |  |  |  |
Total lease expense | 10,600 | 9,600 | 31,200 | 28,200 |  |  |  |
Variable lease costs | 1,600 | 1,500 | 5,600 | 4,900 |  |  |  |
Short-term lease costs | $ 3,700 | $ 2,600 | $ 9,700 | $ 6,600 |  |  |  |
Number of individual claims managed | claim | 1,000 |  | 1,000 |  |  |  |  |
Other Assets |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Recorded insurance receivables | $ 67,800 |  | $ 67,800 |  |  | $ 69,500 |  |

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