v3.19.2

Related Party Transactions (Details) - Director [Member] - Methvin Company [Member] - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Related Party Transaction [Line Items] |  |  |  |  |
Related Party Transaction, Other Revenues from Transactions with Related Party | $ 7.0 | $ 4.6 | $ 14.3 | $ 8.4 |
Accounts Receivable, Related Parties, Current | 2.0 |  | $ 2.0 |  | $ 1.9
Related Party Transaction, Amounts of Transaction | $ 0.2 |  |  |  |

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