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Stock Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Option Activity

A summary of stock option activity for the three months ended March 31, 2018 follows (shares in thousands):

		Stock Options			Weighted- Average Exercise Price				Weighted- Average Remaining Contractual Term  (years)		Aggregate Intrinsic Value
Outstanding at December 31, 2017		1,758			$	26.35
Granted		—			—
Exercised		—			—
Forfeited and expired		(533	)		23.93
Outstanding at March 31, 2018		1,225			27.41				1.94		$	—
Expected to vest at March 31, 2018		20			16.83				4.38		—
Exercisable at March 31, 2018		1,204			27.59				1.89		—

Summary of Restricted Stock Unit Activity

A summary of restricted stock unit activity for the three months ended March 31, 2018 follows (shares in thousands):

		Restricted Stock Units			Weighted- Average Grant-Date Fair Value
Outstanding at December 31, 2017		1,688			$	13.39
Granted		1,373			12.77
Vested		(696	)		13.09
Forfeited and expired		(28	)		12.80
Outstanding at March 31, 2018		2,337			13.15

Schedule of Assumptions Used

The fair value of awards with market conditions was estimated using a Monte Carlo simulation with the following weighted-average assumptions:

		Three Months Ended March 31, 2018
Weighted-average fair value of grant		$	15.84
Risk-free interest rate(i)		2.26		%
Expected volatility(ii)		52.97		%
Expected life of restricted stock units in years(iii)		2.88
Expected dividend yield		—		%

(i)	Represents the continuously compounded semi-annual zero-coupon U.S. treasury rate commensurate with the remaining performance period
(ii)	Based on historical volatility for the company that is commensurate with the length of the performance period
(iii)	Represents the remaining life of the longest performance period

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- Definition

Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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