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Leases (Summary of Lease Costs and Other Lease Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($)
Lease Costs: |  |
Operating lease costs | $ 2,758 |
Variable lease costs | 428 | [1]
Sublease income | (46) |
Net lease costs | 3,140 |
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 2,641 |
Initial recognition of operating lease right of use assets | 23,275 |
Initial recognition of operating lease liabilities | 23,985 |
Right of use assets obtained in exchange for new operating lease liabilities | $ 620 |
[1] | Variable lease costs primarily represent variable payments such as common area maintenance, insurance, taxes and utilities.

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