Shareholders' Equity - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) Director shares	Dec. 31, 2016 shares	Dec. 31, 2015 USD ($) shares
Capital stock [Abstract]
Number of directors entitled to be elected, minimum | Director	3
Percentage of directors entitled to be elected, maximum	33.33%
Incentive Plans [Abstract]
LTI Plan expiration date	Feb. 28, 2025
Shares available for future stock compensation grants (in million shares)	6,300,000
Stock Options and Restricted Stock Units [Abstract]
Right to repurchase shares at fair market value (in hundredths)	100.00%
Expiration after grant date, prior (in years)	eight year
Expiration after grant date, after (in years)	ten year
Stock option issued (in shares)	0
Share Repurchase Program [Abstract]
Repurchase of Class A Common shares (in shares)	0	0	3,986,275
Cost of shares repurchased | $			$ 288.5
Authorized amount | $	$ 1,512.5
Scripps Family Members [Member]
Share Repurchase Program [Abstract]
Repurchase of Class A Common shares (in shares)			3,000,000
Cost of shares repurchased | $			$ 216.8
Restricted Stock Units [Member] | Minimum [Member]
Stock Options and Restricted Stock Units [Abstract]
Vesting period (in years)	1 year
Restricted Stock Units [Member] | Maximum [Member]
Stock Options and Restricted Stock Units [Abstract]
Vesting period (in years)	5 years
Employee [Member]
Stock Options and Restricted Stock Units [Abstract]
Vesting period (in years)	3 years
Non Employee Director [Member]
Stock Options and Restricted Stock Units [Abstract]
Vesting period (in years)	1 year
Common Class A [Member]
Capital stock [Abstract]
Shares reserved for issuance of stock	8,000,000