Content Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Content Assets [Line Items]
Content assets	$ 104,600		$ 7,900
Amortization of content assets	9,818	$ 6,123
This Old House Acquisition
Content Assets [Line Items]
Content assets acquired	$ 96,700