Business and Summary of Significant Accounting Policies - Hurricane Impact (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2017
USD ($)
| |
| Accounting Policies [Abstract] | |
| Estimated losses related to merchandise on hand and on lease destroyed or severely damaged | $ 4,700,000 |
| Insurance proceeds received, before tax | 3,300,000 |
| Partial cash payment from insurer | 400,000 |
| Insurance receivable | 2,900,000 |
| Accounts receivable and lease merchandise, additional reserves recorded | 3,600,000 |
| Insurance proceeds related to business interruption loss | $ 0 |