On July 26, 2022, our Board of Directors declared the 2022 third quarter cash dividend of $0.875 per share of common stock, payable on September 2, 2022 to stockholders of record as of August 19, 2022.

During the second quarters of 2022 and 2021, we declared and paid quarterly dividends of $0.875 and $0.6875 per share, or $53.9 million and $43.8 million in total, respectively. During the six months ended June 30, 2022 and 2021, we declared and paid aggregate quarterly dividends of $1.75 and $1.375 per share, or $108.1 million and $87.6 million in total, respectively. In addition, we paid $2.5 million and $1.0 million in dividend equivalents with respect to vested restricted stock units during the six months ended June 30, 2022 and 2021, respectively.

We make annual grants of long-term incentive awards to officers and key employees in the forms of service-based restricted stock units (“RSUs”) and performance-based restricted stock units (“PSUs”) that have approximately 3-year vesting periods. The PSUs include the right to receive a maximum payout of two shares of our common stock based on

performance goals tied to achieving a three-year return on assets result and include service criteria. We also grant the non-employee members of our Board of Directors stock awards that are fully vested on the grant date. The fair values of the RSUs, PSUs and stock awards are determined based on the closing stock price of our common stock on the grant date.

In the six months ended June 30, 2022 and 2021, we made payments of $17.1 million and $8.3 million, respectively, to tax authorities on our employees’ behalf for shares withheld related to net share settlement of vested RSUs.

A summary of the status of our unvested RSUs and PSUs as of June 30, 2022 and changes during the six months then ended is as follows:

(1)

Comprised of 56,452 RSUs granted in January 2022 with a fair value of $152.21 per unit, and 136,346 RSUs and 112,451 PSUs granted in March 2022 with a fair value of $195.28 per unit. The service-based RSUs cliff vest on December 1, 2024 and the performance-based RSUs are subject to a three-year performance period ending December 31, 2024.

As of June 30, 2022, 58,618 equivalent shares of our common stock for vested RSUs and PSUs were unsettled.

Share Repurchase Plan

Our share repurchase activity during the six months ended June 30, 2022 and 2021 was as follows:


	2022					2021
		Average Cost					Average Cost
	Shares	Per Share		Amount		Shares	Per Share		Amount
				(in millions)					(in millions)
First quarter	113,529	$	150.97	$	17.1	—	$	—	$	—
Second quarter	1,085,635		178.61		193.9	147,016		163.50		24.0
	1,199,164	$	176.00	$	211.0	147,016	$	163.50	$	24.0

Our share repurchases in the six months ended June 30, 2022 were made under the $1.0 billion share repurchase program authorized by our Board of Directors on July 20, 2021. Subsequent to quarter end, we repurchased an additional 581,648 shares at an average cost of $171.94 per share, for a total of $100.0 million, resulting in $401.6 million remaining authorized under the plan as of July 25, 2022; on July 26, 2022, our Board of Directors again increased the repurchase authorization to $1.0 billion. The share repurchase program does not obligate us to repurchase any specific number of shares, does not have a specific expiration date and may be suspended or discontinued at any time. We may repurchase shares through open market purchases, privately negotiated transactions and transactions structured through investment banking institutions under plans relying on Rule 10b5-1 and/or Rule 10b-18 under the Securities Exchange Act of 1934, as amended. Repurchased and subsequently retired shares are restored to the status of authorized but unissued shares.

Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss included the following:


	Foreign Currency		Postretirement Benefit		Accumulated Other
	Translation		Plan Adjustments,		Comprehensive
	Loss		Net of Tax		Loss
			(in millions)
Balance as of January 1, 2022	$	(55.2)	$	(13.7)	$	(68.9)
Current-period change		(19.3)		(0.1)		(19.4)
Balance as of June 30, 2022	$	(74.5)	$	(13.8)	$	(88.3)

Foreign currency translation adjustments have not been adjusted for income taxes. Postretirement benefit plan adjustments are net of taxes of $3.3 million as of June 30, 2022 and December 31, 2021. The income tax effects relating to our postretirement benefit plan adjustments are reflected in our income tax provision in future periods as the postretirement benefit plan adjustments are amortized over service periods and reflected in the amortization of net loss component of our net periodic benefit cost or are otherwise released and recognized as a loss as a result of a plan settlement.