Business and Summary of Significant Accounting Policies - Store Count by Ownership Type (Footnote) (Details) |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2016
transaction
store
|
Dec. 31, 2015
store
|
Dec. 31, 2014
store
|
|
| Significant Accounting Policies [Line Items] | |||
| Franchises granted (in number of stores) | store | 749 | 813 | 920 |
| Operating Segments | Progressive | |||
| Significant Accounting Policies [Line Items] | |||
| Virtual lease to own transactions completed (at least) | transaction | 1 | ||