During the three months ended June 30, 2016, we repurchased 3,799 of our common shares for $0.4 million. During the six months ended June 30, 2016, we repurchased 10,164 of our common shares for $1.1 million. These consisted of rights to shares 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. We distributed 11,736 and 33,892 treasury shares upon vesting of stock-based awards during the three and six months ended June 30, 2016, respectively.

In February and May 2016, we paid quarterly dividends of $0.55 per share of common stock. In addition, on July 7, 2016, we declared a quarterly dividend of $0.55 per share of common stock for shareholders of record on July 18, 2016 and payable on August 15, 2016.

On May 17, 2016 we completed a public offering of 1,475,000 shares of our common stock. The purchase price paid by the underwriter was $116.67 per share. On May 26, 2016, the underwriters exercised in full their option to purchase an additional 221,250 shares of common stock at the public offering price of $116.67 per share. The net proceeds from these issuances of common stock were approximately $197.2 million, after deducting underwriting discounts and offering expenses. The proceeds were used to repay a portion of the outstanding borrowings under our Credit Facility.

At the annual meeting of shareholders on May 19, 2016, our shareholders approved the cancellation of 1,250,000 shares of our common stock then held as treasury stock. This treasury stock will be cancelled on or about August 2, 2016, after the expiration of the waiting period required under Dutch law. In accordance with ASC 505-30-30-8, we will charge the excess of the cost of the treasury stock over its par value to additional paid-in capital.

The following table summarizes our changes in equity for the six months ended June 30, 2016 (in thousands):



	Shares Outstanding		Common Shares		Additional Paid-In Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Treasury Stock			Non-Controlling Interest			Total Equity
December 31, 2015	42,375,905		$	1,142	$	—		$	219,207		$	(10,538	)	$	(238,875	)	$	5,365		$	(23,699	)
Stock based-awards	33,892		—		6,488			—			—			4,599			—			11,087
Tax detriment of stock-based awards	—		—		(284		)	—			—			—			—			(284		)
Repurchase of common shares	(10,164	)	—		—			—			—			(1,112		)	—			(1,112		)
Issuance of common shares	1,696,250		38		197,173			—			—			—			—			197,211
Dividends paid	—		—		—			(46,626		)	—			—			—			(46,626		)
Non-controlling interest dividends	—		—		—			—			—			—			(211		)	(211		)
Amortization of deferred pension costs, net of tax	—		—		—			—			194			—			—			194
Interest rate swaps, net of tax	—		—		—			—			(1,261		)	—			—			(1,261		)
Net income	—		—		—			31,706			—			—			(54		)	31,652

June 30, 2016	44,095,883		$	1,180	$	203,377		$	204,287		$	(11,605	)	$	(235,388	)	$	5,100		$	166,951

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



	June 30, 2016			December 31, 2015
Prior service cost	$	632		$	661
Unrecognized net actuarial loss	(9,978		)	(10,201		)
Fair value of derivatives	(2,259		)	(998		)
Total accumulated other comprehensive income (loss)	$	(11,605	)	$	(10,538	)