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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract] |
Schedule Of Accrued Short- And Long-Term Insurance Liabilities | The following table includes the Company’s accrued short- and long-term insurance liabilities at December 31:
(in thousands) |  | 2018 |  |  | 2017 |  |  | 2016 |
Balance at beginning of period |  | $ | 45,363 |  |  | $ | 42,584 |  |  | $ | 36,967 |
Net increases in reserves |  |  | 31,193 |  |  |  | 22,938 |  |  |  | 25,139 |
Net payments made |  |  | (22,517 | ) |  |  | (20,159 | ) |  |  | (19,522 | )
Balance at end of period |  | $ | 54,039 |  |  | $ | 45,363 |  |  | $ | 42,584 |

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