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Leases (Schedule Of Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Jan. 01, 2019
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Leases [Abstract] |  |
Operating lease right-of-use assets | $ 24,828 |
Accumulated amortization | (2,415) |
Operating lease right-of-use assets, net | 22,413 |
Current maturities of operating leases | 5,021 |
Non-current maturities of operating leases | 19,241 |
Total operating lease liabilities | 24,262 |
Finance leases, Property and equipment, at cost | 7,627 |
Finance leases, Accumulated amortization | (1,302) |
Finance leases, property and equipment, net | 6,325 |
Current maturities of finance leases | 665 |
Non-current maturities of finance leases | 5,611 |
Total finance lease liabilities | $ 6,276 |
Weighted average remaining lease term (in years): Operating leases | 5 years 10 months 24 days | 6 years
Weighted average remaining lease term (in years): Finance leases | 11 years |
Weighted average discount rate: Operating leases | 5.50% |
Weighted average discount rate: Finance leases | 2.00% |

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