Business and Summary of Significant Accounting Policies - Summary of Goodwill by Reporting Unit (Details) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2016
USD ($)
reporting_unit
segments
|
Dec. 31, 2015
USD ($)
|
Dec. 31, 2014
USD ($)
|
|
| Goodwill [Line Items] | |||
| Number of operating segments | segments | 5 | ||
| Number of reporting units | reporting_unit | 5 | ||
| Goodwill | $ 526,723 | $ 539,475 | $ 530,670 |
| Sales and Lease Ownership | |||
| Goodwill [Line Items] | |||
| Goodwill | 237,922 | 233,851 | 226,828 |
| Progressive | |||
| Goodwill [Line Items] | |||
| Goodwill | 288,801 | 290,605 | 289,184 |
| HomeSmart | |||
| Goodwill [Line Items] | |||
| Goodwill | 0 | 14,729 | 14,658 |
| DAMI | |||
| Goodwill [Line Items] | |||
| Goodwill | $ 0 | $ 290 | $ 0 |