FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Measurements

Valuation of marketable securities

The tables below identify the estimated fair value of the Company’s marketable securities, determined by reference to quoted market prices (Level 1), as of June 30, 2022, and December 31, 2021 (in thousands):

	June 30, 2022
	Quoted Priced in Active Markets		Significant Other		Significant
	for Identical Instruments		Observable Inputs		Unobservable Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Marketable securities	$	47,468	$	—	$	—	$	47,468

	December 31, 2021
	Quoted Prices in Active Markets		Significant Other		Significant
	for Identical Instruments		Observable Inputs		Unobservable Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Marketable securities	$	52,456	$	—	$	—	$	52,456

Valuation of senior notes

	June 30, 2022				December 31, 2021
	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Senior Notes	$	4,669,833	$	4,501,833	$	3,826,978	$	4,135,629