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Stock Options (Tables)

9 Months Ended

Sep. 30, 2017

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

Fair Value Assumptions on Stock Options

For the nine months ended September 30, 2016, the fair value of stock option awards was estimated using the Black-Scholes option pricing model with the following assumptions and weighted-average fair values:

		Nine Months Ended September 30, 2016
Weighted-average fair value of grant		$	4.53
Risk-free interest rate		1.29		%
Expected volatility		51.30		%
Expected life of options in years		4.90
Expected dividend yield		—

Summary of Stock Option Activity

A summary of stock option activity for the nine months ended September 30, 2017 follows (shares in thousands):

Options		Shares			Weighted- Average Exercise Price				Weighted- Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at December 31, 2016		2,099			$	25.41
Granted		—			—
Exercised		(1	)		10.65
Forfeited and expired		(320	)		20.22
Outstanding at September 30, 2017		1,778			26.35				1.81		$	—
Expected to vest at September 30, 2017		204			22.93				3.70		—
Exercisable at September 30, 2017		1,571			26.80				1.56		—

Summary of Restricted Stock Unit Activity

A summary of restricted stock unit activity for the nine months ended September 30, 2017 follows (shares in thousands):

		Restricted Stock Units			Weighted- Average Grant-Date Fair Value
Outstanding at December 31, 2016		1,454			$	12.68
Granted		1,022			13.95
Vested		(549	)		13.28
Forfeited and expired		(216	)		11.73
Outstanding at September 30, 2017		1,711			13.44

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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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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ 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 (f)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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