Assets and Liabilities Measured at Fair Value (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

The Company’s assets and liabilities measured at fair value are as follows:

	December 31, 2019				December 31, 2018
Description	Total		Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Total	Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)
	amounts in thousands
Cash equivalents	$	533,484	533,484	—	384,071	384,071	—
Equity securities	$	2,600,008	2,600,008	—	1,529,901	1,529,901	—
Investment in Liberty Broadband	$	5,367,242	5,367,242	—	3,074,373	3,074,373	—
Derivative instrument liability	$	71,305	—	71,305	20,340	—	20,340
Indemnification obligation	$	202,086	—	202,086	78,522	—	78,522
Exchangeable senior debentures	$	658,839	—	658,839	462,336	—	462,336

Schedule of Realized and Unrealized Gains (Losses) on Financial Instruments

Realized and unrealized gains (losses) on financial instruments, net are comprised of changes in the fair value of the following:

	Years ended December 31,
	2019			2018		2017
	amounts in thousands
Equity securities	$	1,074,736		(274,393	)	258,629
Investment in Liberty Broadband	2,292,869			(560,413	)	473,342
Derivative instruments	(50,965		)	75,970		(94,807	)
Indemnification obligation	(123,564		)	70,007		NA
Exchangeable senior debentures	(190,676		)	7,284		NA
	$	3,002,400		(681,545	)	637,164