SHAREHOLDERS' EQUITY
 6 Months Ended
Jun. 30, 2017
Stockholders' Equity Note [Abstract]  
SHAREHOLDERS' EQUITY
SHAREHOLDERS’ EQUITY

On April 24, 2014, our board of directors authorized a share repurchase program for up to 8 million shares of common stock that terminated on April 24, 2017. For the six months ended June 30, 2017 and 2016, no shares were purchased and retired. We purchased a total of 1.9 million shares under the April 2014 program, and the 6.1 million shares that remained authorized to be purchased have expired. Related to the Acquisition, for a period of two years subsequent to the Closing Date, we are subject to certain restrictions on our ability to conduct share repurchases.

We issued 0.9 million shares and less than 0.1 million shares representing stock options exercised for the six months ended June 30, 2017 and 2016, respectively, with a total value of $15.8 million and $0.2 million, respectively.

The following table represents the activity included in accumulated other comprehensive loss:
 
Foreign
Currency
Translation
Adjustment
(net of taxes)
 
Unrealized
Gains (Losses)
on Derivative
Contracts
(net of taxes)
 
Pension and
Postretirement
Benefits
(net of taxes)
 
Accumulated
Other Comprehensive
Loss
 
($ in millions)
Balance at January 1, 2016
$
(12.1
)
 
$
(6.9
)
 
$
(473.5
)
 
$
(492.5
)
Unrealized gains (losses):
 
 
 
 
 
 
 
First quarter
24.0

 
1.1

 
—

 
25.1

Second quarter
(14.3
)
 
(4.6
)
 
—

 
(18.9
)
Reclassification adjustments into income:
 
 
 
 
 
 
 
First quarter
—

 
3.7

 
6.1

 
9.8

Second quarter
—

 
1.7

 
5.9

 
7.6

Tax (provision) benefit:
 
 
 
 
 
 
 
First quarter
(8.5
)
 
(1.8
)
 
(2.3
)
 
(12.6
)
Second quarter
3.5

 
1.1

 
(2.4
)
 
2.2

Net Change
4.7

 
1.2

 
7.3

 
13.2

Balance at June 30, 2016
$
(7.4
)
 
$
(5.7
)
 
$
(466.2
)
 
$
(479.3
)
Balance at January 1, 2017
$
(24.1
)
 
$
12.8

 
$
(498.7
)
 
$
(510.0
)
Unrealized gains (losses):
 
 
 
 
 
 
 
First quarter
8.3

 
(3.1
)
 
—

 
5.2

Second quarter
28.1

 
(3.7
)
 
—

 
24.4

Reclassification adjustments into income:
 
 
 
 
 
 
 
First quarter
—

 
(0.1
)
 
6.6

 
6.5

Second quarter
—

 
(2.3
)
 
6.8

 
4.5

Tax (provision) benefit:
 
 
 
 
 
 
 
First quarter
(2.3
)
 
1.2

 
(2.7
)
 
(3.8
)
Second quarter
(12.2
)
 
2.3

 
(2.3
)
 
(12.2
)
Net Change
21.9

 
(5.7
)
 
8.4

 
24.6

Balance at June 30, 2017
$
(2.2
)
 
$
7.1

 
$
(490.3
)
 
$
(485.4
)


Net (loss) income and cost of goods sold included reclassification adjustments for realized gains and losses on derivative contracts from accumulated other comprehensive loss.

Net (loss) income, cost of goods sold and selling and administrative expenses included the amortization of prior service costs and actuarial losses from accumulated other comprehensive loss. This amortization is recognized equally in cost of goods sold and selling and administrative expenses.