Related Party Transactions with Officers and Directors (Details)								1 Months Ended		12 Months Ended
	Jun. 03, 2021 tranche shares	Jun. 02, 2021 shares	May 18, 2021 $ / shares	Nov. 17, 2020	Dec. 16, 2015	Mar. 31, 2015 $ / shares shares	Dec. 24, 2014 $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) tranche $ / shares shares	Dec. 31, 2021 USD ($) tranche $ / shares shares	Dec. 31, 2020
Common Class A
Granted										2,222,000
Exercise price | $ / shares										$ 11.63
Cancellation										3,899,000
WAEP forfeited/cancelled during period | $ / shares										$ 12.76
Common Class B
Cancellation										1,335,000
WAEP forfeited/cancelled during period | $ / shares										$ 16.93
Malone Maffei Transaction
Cash price payable | $ / shares			$ 14.00
Call price | $ / shares			$ 13.62
Malone Maffei Transaction | Common Class A
Average closing price			110.00%
Number of consecutive trading days			30 days
Malone Stock Exchange Agreement | Common Class A
Number of shares issued		30,421,522
Call price conversion ratio		1.1
Malone Stock Exchange Agreement | Common Class B
Number of shares transferred		27,655,931
Maffei Stock Exchange Agreement
Period following the vesting of awards	6 months
Threshold percentage of voting power	20.00%
Maffei Stock Exchange Agreement | Common Class A
Number of shares transferred	5,378,308
Former Chief Executive Officer
Employment agreement term				1 year	5 years
Officers' Compensation | $										$ 1,500,000
Annual target cash bonus										100.00%
Percentage of base salary which can be paid as maximum bonus										240.00%
CEO | Common Class A
Number of equal tranches at which award is granted | tranche										2
Granted										1,185,000
CEO | Liberty Media
Relative market capitalization percentage									50.00%
Blended average of historical time allocation on a Liberty Media-wide and CEO basis weighted average									50.00%
CEO | Liberty
Employment agreement term									5 years
Annual base salary | $									$ 3,000,000
One-time cash commitment bonus | $									5,000,000
Annual target cash performance bonus | $									17,000,000
Equity award aggregate grant date fair value | $									$ 90,000,000
Number of equal tranches at which award is granted | tranche									2
CEO compensation allocation percentage										17.00%	19.00%
Restricted Stock Units (RSUs) | Maffei Waiver Letter and Amendment of Employment Agreement
Number of equal tranches | tranche	2
Restricted Stock Units (RSUs) | Maffei Waiver Letter and Amendment of Employment Agreement | Common Class B
Grants in period	1,101,321
Performance Shares | Former Chief Executive Officer
Target value of equity awards entitled to be received | $										$ 5,500,000
Performance Shares | CEO | Common Class A
Grants in period										143,000
Performance Shares | Maximum [Member] | Former Chief Executive Officer
Target value of equity awards entitled to be received | $										$ 8,300,000
Time-based RSUs | Former Chief Executive Officer
Target value of equity awards entitled to be received | $										$ 5,500,000
Time-based RSUs | CEO | Common Class A
Grants in period										509,000
Time-vested options and/or performance-based RSUs | CEO
Grant date fair value | $									$ 17,500,000
Option granted on December 24, 2014 | Maffei Waiver Letter and Amendment of Employment Agreement
Cancellation							1,137,228
WAEP forfeited/cancelled during period | $ / shares							$ 16.97
Option granted on March 31, 2015 | Maffei Waiver Letter and Amendment of Employment Agreement
Cancellation						197,783
WAEP forfeited/cancelled during period | $ / shares						$ 16.71
2019 term awards | CEO | Liberty
Aggregate grant date fair value | $									$ 8,550,000
Granted									2,133,697
Exercise price | $ / shares									$ 8.17
2020 term awards | CEO | Liberty
Aggregate grant date fair value | $								$ 5,850,000
Granted								1,190,529
Exercise price | $ / shares								$ 10.34