Restructuring Charges - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
Restructuring Cost and Reserve [Line Items] | |||
Restructuring charges | $ 0.3 | $ 2.1 | $ 6.4 |
Restructuring Reserve | 0.4 | ||
Operating segments | U.S. Media | |||
Restructuring Cost and Reserve [Line Items] | |||
Restructuring charges | 0.9 | 2.3 | |
Operating segments | Other | |||
Restructuring Cost and Reserve [Line Items] | |||
Restructuring charges | 0.8 | $ 4.1 | |
Corporate | |||
Restructuring Cost and Reserve [Line Items] | |||
Restructuring charges | $ 0.3 | $ 0.4 |