Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES On March 27, 2020, the Coronavirus Aid, Relief and Economic Security (CARES) Act was enacted, which included several technical corrections to the 2017 Tax Cuts and Jobs Act and provisions allowing certain net operating losses generated by businesses in 2018, 2019 and 2020 to be carried back five prior tax years. Overall, the CARES Act had limited impact on the Company’s tax provision for the first six months of 2020. On July 1, 2015 (the Distribution Date), the Company completed the spin-off of Cable ONE as an independent, publicly traded company. The transaction was structured as a tax-free spin-off of Cable ONE to the stockholders of the Company. Since July 1, 2015, Cable One has been an independent public company trading on the New York Stock Exchange under the symbol “CABO”. In connection with the CARES Act, Cable One now has the ability to carryback its 2019 taxable losses to the tax period from January 1, 2015 to June 30, 2015, the period in which Cable One was included in the Company’s 2015 tax return. As a result, the Company plans to amend its 2015 tax returns in order to accommodate Cable One's request to carryback its 2019 taxable losses. The Company expects that this action will have no impact on the results or the financial position of the Company. To reflect the expected refund due to Cable One, the Company has included an estimated $20.7 million current income tax receivable and a corresponding current liability to Cable One on its balance sheet as of June 30, 2020. The Company’s effective tax rate for the six months ended June 30, 2020 was 18.9%. The effective tax rate for the first quarter of 2020 was 57.3% and the effective tax rate for the second quarter of 2020 was 69.0%. The effective tax rate for interim periods is generally based on the Company’s estimated effective tax rate for fiscal year 2020. The Company’s estimated effective tax rate for 2020 includes the adverse impacts of the COVID-19 pandemic, the CARES Act, and losses on marketable equity securities on the Company’s estimated pre-tax income for 2020, resulting in a higher overall estimated tax rate, as permanent differences and increased valuation allowances in certain jurisdictions have an impact on the overall estimated effective tax rate.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.