Basis and Summary of Significant Accounting Policies - Hurricane Impact (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2019
USD ($)
| |
| Accounting Policies [Abstract] | |
| Partial cash payment from insurer | $ 2.7 |
| Insurance proceeds received, before tax | 4.5 |
| Insurance settlements receivable | $ 4.3 |