Total Equity

Total equity is comprised of the following (in millions, except per share amounts):



	September 30, 2017			December 31, 2016
Common stock, $.01 par value:
Common Stock-- authorized 200.0 shares; issued and outstanding 54.7 and 55.5 shares	$	0.5		$	0.6
Additional paid-in capital	3.8			15.4
Retained earnings	1,914.3			1,879.3
Accumulated other comprehensive loss:
Pension and post retirement benefit plan adjustment, net of tax	(175.0		)	(180.5		)
Cumulative translation adjustment	(85.5		)	(120.8		)
Unrealized gain on investment, net of tax	(0.2		)	(1.2		)
Cash flow hedge (loss) gain, net of tax	(1.9		)	—
Total Accumulated other comprehensive loss	(262.6		)	(302.5		)
Hubbell shareholders’ equity	1,656.0			1,592.8
Noncontrolling interest	11.7			10.4
TOTAL EQUITY	$	1,667.7		$	1,603.2

For accounting purposes, the Company treats repurchased shares as constructively retired when acquired and accordingly charges the purchase price against Common Stock par value, Additional paid-in capital, to the extent available, and Retained earnings. As a result of this accounting treatment, during the first nine months of 2017, $72.1 million of purchase price of repurchased shares was allocated to retained earnings.

A summary of the changes in equity for the nine months ended September 30, 2017 and 2016 is provided below (in millions):



	Nine Months Ended September 30,
	2017									2016
	Hubbell Shareholders’ Equity			Noncontrolling interest			Total Equity			Hubbell Shareholders’ Equity			Noncontrolling interest			Total Equity
EQUITY, JANUARY 1	$	1,592.8		$	10.4		$	1,603.2		$	1,740.6		$	8.4		$	1,749.0
Total comprehensive income	262.6			4.8			267.4			217.5			3.5			221.0
Stock-based compensation	11.9			—			11.9			13.1			—			13.1
Income tax windfall from stock-based awards, net	—			—			—			2.2			—			2.2
Repurchase/surrender of shares of common stock	(96.0		)	—			(96.0		)	(242.9		)	—			(242.9		)
Issuance of shares related to directors’ deferred compensation, net	0.4			—			0.4			0.4			—			0.4
Dividends to noncontrolling interest	—			(3.5		)	(3.5		)	—			(2.8		)	(2.8		)
Cash dividends declared	(115.7		)	—			(115.7		)	(105.4		)	—			(105.4		)
EQUITY, SEPTEMBER 30	$	1,656.0		$	11.7		$	1,667.7		$	1,625.5		$	9.1		$	1,634.6

The detailed components of total comprehensive income are presented in the Condensed Consolidated Statement of Comprehensive Income.