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v3.10.0.1

Other Assets (Narrative) (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Deferred tax assets, valuation allowance, current | $ 0.0 | $ 0.0
State and Local Jurisdiction [Member] |  |
Operating loss carryforwards | $ 6.0 |
Minimum [Member] | State and Local Jurisdiction [Member] |  |
Operating loss carryforwards, expiration date | Dec. 31, 2026 |
Maximum [Member] | State and Local Jurisdiction [Member] |  |
Operating loss carryforwards, expiration date | Dec. 31, 2034 |

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