Equity Compensation (Tables)

9 Months Ended

Sep. 30, 2017

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

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

The amounts of equity-based compensation expense recognized as part of selling, general and administrative expenses were as follows (in thousands):

	For the Nine Months Ended September 30,
	2017		2016
Restricted stock / units	$	4,244	$	4,085
Performance shares / units	1,620		774
Non-qualified and performance stock options	765		675
Total stock-based compensation expense	$	6,629	$	5,534

Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]

As of September 30, 2017, unrecognized compensation expense related to equity-based compensation arrangements granted under the company's 2013 Plan and previous plans, which is related to non-vested options and shares, was as follows (in thousands):

	September 30, 2017
Restricted stock and restricted stock units	$	8,657
Performance shares and performance share units	7,514
Non-qualified and performance stock options	3,439
Total unrecognized stock-based compensation expense	$	19,610

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes information about stock option activity for the nine months ended September 30, 2017:

	September 30, 2017				Weighted Average Exercise Price
Options outstanding at January 1, 2017	2,542,732				$	21.19
Granted	756,420				12.15
Exercised	(127,450		)		13.82
Canceled	(315,976		)		23.03
Options outstanding at September 30, 2017	2,855,726				$	18.91
Options exercise price range at September 30, 2017	$	12.15		to	$	33.36
Options exercisable at September 30, 2017	2,097,286
Shares available for grant at September 30, 2017*	1,417,721

________

 * Shares available for grant as of September 30, 2017 reduced by net restricted stock and restricted stock unit award and performance share and performance share unit award activity of 2,478,362 shares and 2,124,222 shares, respectively.

Schedule of Share-based Compensation, Stock Options Outstanding

The following table summarizes information about stock options outstanding at September 30, 2017:

	Options Outstanding				Options Exercisable
Exercise Prices	Number Outstanding at September 30, 2017	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price		Number Exercisable at September 30, 2017	Weighted Average Exercise Price
$ 12.15 – $20.00	1,294,541	7.6	$	13.00	536,101	$	14.19
$ 20.01 – $25.00	824,151	2.7	22.21		824,151	22.21
$ 25.01 – $30.00	732,538	1.9	25.55		732,538	25.55
$ 30.01 – $33.36	4,496	3.6	33.36		4,496	33.36
Total	2,855,726	4.7	$	18.91	2,097,286	$	21.35

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The fair value of options granted is estimated on the date of grant using a Black-Scholes option-pricing model. The calculated fair value of the 2017 performance option awards was $5.38 based on the following assumptions:

	2017
Expected dividend yield	0.4	%
Expected stock price volatility	39.1	%
Risk-free interest rate	2.31	%
Expected life in years	7.8
Forfeiture percentage	5.0	%

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following table summarizes information about restricted shares and restricted share units (primarily for non-U.S. recipients):

	September 30, 2017		Weighted Average Fair Value
Stock / Units unvested at  January 1, 2017	878,356		$	15.87
Granted	493,412		12.15
Vested	(364,367	)	16.66
Canceled	(134,398	)	13.80
Stock / Units unvested at  September 30, 2017	873,003		$	13.75

Share-based Compensation, Performance Shares Award Unvested Activity [Table Text Block]

The following table summarizes information about performance shares and performance share units (for non-U.S. recipients):

	September 30, 2017		Weighted Average Fair Value
Shares / Units unvested at January 1, 2017	309,468		$	14.58
Granted	336,694		12.02
Vested	—		—
Canceled	(3,711	)	12.82
Shares / Units unvested at September 30, 2017	642,451		$	13.25