CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts receivable, trade allowance for doubtful accounts		$ 25,198
Property, plant and equipment, accumulated depreciation	$ 6,639,771	6,431,843
Amortizable intangible assets, accumulated amortization	4,574,426	4,409,312
CSC Holdings
Accounts receivable, trade allowance for doubtful accounts	22,395	25,198
Property, plant and equipment, accumulated depreciation	6,639,771	6,431,843
Amortizable intangible assets, accumulated amortization	$ 4,574,426	$ 4,409,312
Members' Equity	100	100
Common Unit, Outstanding	100	100