Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Schedule of reserve for authorized but unissued shares of common stock

As of December 31, 2021, we had reserved the following authorized but unissued shares of common stock for future issuances:

Common stock options and restricted stock units	5,327,514
Common stock employee purchase plans	2,640,649
Total	7,968,163

Components of Accumulated Other Comprehensive Loss, net of tax

The changes in accumulated other comprehensive loss, net of tax, by components are as follows (in thousands):

	December 31, 2018		Net Change		December 31, 2019		Net Change		December 31, 2020		Net Change		December 31, 2021
Foreign currency translation adjustment ("CTA") gain (loss)	$	(998,603)	$	(58,315)	$	(1,056,918)	$	548,503	$	(508,415)	$	(559,984)	$	(1,068,399)
Unrealized gain (loss) on cash flow hedges (1)	19,480		(3,842)		15,638		(82,790)		(67,152)		60,562		(6,590)
Net investment hedge CTA gain (loss) (1)	34,325		73,294		107,619		(444,553)		(336,934)		326,982		(9,952)
Net actuarial gain (loss) on defined benefit plans (2)	(904)		(48)		(952)		85		(867)		57		(810)
	$	(945,702)	$	11,089	$	(934,613)	$	21,245	$	(913,368)	$	(172,383)	$	(1,085,751)

(1)Refer to Note 8 for a discussion of the amounts reclassified from accumulated other comprehensive loss to net income.

(2)We have a defined benefit pension plan covering all employees in two countries where such plans are mandated by law. We do not have any defined benefit plans in any other countries. The unamortized gain (loss) on defined benefit plans includes gains or losses resulting from a change in the value of either the projected benefit obligation or the plan assets resulting from a change in an actuarial assumption, net of amortization.

Quarterly dividend and special distributions

During the years ended December 31, 2021, 2020 and 2019, our Board of Directors declared quarterly dividends whose treatment for federal income tax purposes were as follows:

Declaration Date	Record Date	Payment Date	Total Distribution (1)		Nonqualified Ordinary Dividend (2)		Total Distribution Amount
			(per share)				(in thousands)
Fiscal 2021
2/10/2021	2/24/2021	3/17/2021	$	2.870000	$	2.870000	$	256,321
4/28/2021	5/19/2021	6/16/2021	2.870000		2.870000		257,199
7/28/2021	8/18/2021	9/22/2021	2.870000		2.870000		257,769
11/3/2021	11/17/2021	12/15/2021	2.870000		2.870000		258,716
Total			$	11.480000	$	11.480000	$	1,030,005
Fiscal 2020
2/12/2020	2/26/2020	3/18/2020	$	2.660000	$	2.660000	$	227,386
5/6/2020	5/20/2020	6/17/2020	2.660000		2.660000		235,449
7/29/2020	8/19/2020	9/23/2020	2.660000		2.660000		236,424
10/28/2020	11/18/2020	12/9/2020	2.660000		2.660000		237,010
Total			$	10.640000	$	10.640000	$	936,269
Fiscal 2019
2/13/2019	2/27/2019	3/20/2019	$	2.460000	$	2.460000	$	198,933
5/1/2019	5/22/2019	6/19/2019	2.460000		2.460000		207,949
7/31/2019	8/21/2019	9/18/2019	2.460000		2.460000		209,226
10/30/2019	11/20/2019	12/11/2019	2.460000		2.460000		209,785
Total			$	9.840000	$	9.840000	$	825,893

(1)Common stock dividends are characterized for federal income tax purposes as nonqualified ordinary dividend, qualified ordinary dividend, capital gains or return of capital. During the years ended December 31, 2021, 2020 and 2019, we did not classify any portion of the distributions as qualified ordinary dividend, capital gains or return of capital.

(2)All nonqualified ordinary dividends are eligible for the 20% deduction generally allowable to non-corporate shareholders under Internal Revenue Code Section 199A.