During the three months ended September 30, 2015, we repurchased 268,594 of our common shares for $28.7 million. Included in this total were rights to 5,295 shares valued at $0.6 million that were surrendered to us pursuant to the terms of a stock-based compensation plan in consideration of the participants' tax burdens that may result from the issuance of common shares under that plan. During the nine months ended September 30, 2015, we repurchased 1,311,616 of our common shares for $144.5 million. Included in this total were rights to 23,773 shares valued at $2.6 million that were surrendered to us pursuant to the terms of a stock-based compensation plan in consideration of the participants' tax burdens that may result from the issuance of common shares under that plan.Such common shares, unless canceled, may be reissued for a variety of purposes such as future acquisitions, non-employee director stock awards or employee stock awards. During the three and nine months ended September 30, 2015, 19,139 and 81,913, respectively, treasury shares were distributed upon vesting of stock-based awards.

At the annual meeting of shareholders on May 21, 2015, our shareholders approved the cancellation of 1,250,000 shares of our common stock then held as treasury stock. These treasury shares were cancelled after the expiration of the waiting period required under Dutch law. In accordance with ASC 505-30-30-8, we charged the excess of the cost of the treasury stock over its par value to additional paid-in capital and retained earnings.

In February, May and August 2015, we paid a quarterly dividend of $0.55 per share of common stock. In addition, on October 13, 2015, we declared a quarterly dividend of $0.55 per share of common stock for shareholders of record on October 23, 2015 and payable on November 24, 2015.

The following table summarizes our changes in equity for the nine months ended September 30, 2015 (in thousands):



	Common Shares			Additional Paid-In Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Treasury Stock			Non-Controlling Interest			Total Equity
December 31, 2014	$	1,174		$	—		$	415,906		$	(11,894	)	$	(317,613	)	$	6,420		$	93,993
Stock based-awards	—			3,181			(2,094		)	—			14,877			—			15,964
Tax benefit of stock-based awards issued	—			180			—			—			—			—			180
Repurchase of common shares	—			—			—			—			(144,450		)	—			(144,450		)
Dividends paid	—			—			(70,933		)	—			—			—			(70,933		)
Cancellation of common shares	(32		)	(3,092		)	(206,267		)	—			209,391			—			—
Amortization of deferred pension costs, net of tax	—			—			—			317			—			—			317
Interest rate swaps	—			—			—			(324		)	—			—			(324		)
Net income (loss)	—			—			99,429			—			—			(91		)	99,338

September 30, 2015	$	1,142		$	269		$	236,041		$	(11,901	)	$	(237,795	)	$	6,329		$	(5,915	)

Accumulated other comprehensive income (loss) consisted of the following (in thousands):



	September 30, 2015			December 31, 2014
Transition asset	$	15		$	65
Prior service cost	674			718
Unrecognized net actuarial loss	(11,184		)	(11,595		)
Fair value of derivatives, net of tax	(1,406		)	(1,082		)
Total accumulated other comprehensive income (loss)	$	(11,901	)	$	(11,894	)