INVESTMENTS AND FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Assets And Liabilities Measured At Fair Value On A Recurring Basis

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	As of March 31, 2022		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Assets:
Cash and cash equivalents:
Cash	$	614,758	$	614,758	$	—	$	—
Money market funds	76,878		76,878		—		—
Corporate securities	16,978		—		16,978		—
Government securities	18,076		—		18,076		—
Available-for-sale securities:
Corporate securities	24,302		—		23,802		500
Prepaid expenses and other current assets:
Foreign currency derivatives	4,978		—		4,978		—
Total assets	$	755,970	$	691,636	$	63,834	$	500
Accrued expenses and other current liabilities:
Foreign currency derivatives	1,741		—		1,741		—
Total liabilities	$	1,741	$	—	$	1,741	$	—

	As of December 31, 2021		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Assets:
Cash and cash equivalents:
Cash	$	425,650	$	425,650	$	—	$	—
Money market funds	70,893		70,893		—		—
Corporate securities	17,450		—		17,450		—
Available-for-sale securities:
Corporate securities	27,940		—		27,440		500
Prepaid expenses and other current assets:
Foreign currency derivatives	741		—		741		—
Total assets	$	542,674	$	496,543	$	45,631	$	500
Accrued expenses and other current liabilities:
Foreign currency derivatives	1,531		—		1,531		—
Total liabilities	$	1,531	$	—	$	1,531	$	—

Schedule of Fair Value, by Balance Sheet Grouping

As of March 31, 2022, the fair values of the $750.0 million unsecured senior notes due March 1, 2030 (the “2030 Notes”), $750.0 million unsecured senior notes due December 1, 2027 (the “2027 Notes”), and $750.0 million 2026 Notes were determined based on inputs that are observable in the market (Level 2). Based on the closing trading price per $100 as of the last day of trading for the quarter ended March 31, 2022, the carrying value was as follows (in thousands):

	Fair Value		Carrying Value
2030 Notes	$	744,210	$	740,582
2027 Notes	$	769,485	$	744,930
2026 Notes	$	727,965	$	743,298