Shared-based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

The dividend yield is computed as the annualized dividend rate at the grant divided by the strike price of the stock option. The weighted average input assumptions used for the years ended December 31, 2017, 2016 and 2015 were as follows:


	2017	2016	2015

Expected term (in years)	6	6	6
Risk-free interest rate	2.05%	1.11%	1.71%
Expected volatility	38.33%	42.22%	50.91%
Dividend yield	2.40%	3.56%	-

Schedule of Share-based Compensation, Stock Options, Activity

The number of stock options and weighted-average exercise prices as of December 31, 2017 and 2016 are as follows:


	2017			2016
	Shares	Weighted-Average Exercise Price		Shares	Weighted-Average Exercise Price
(shares in thousands)
Outstanding at beginning of period	129	$	28.22	98	$	28.17
Granted	38		44.73	50		27.99
Exercised	(27)		27.34	(12)		25.64
Forfeited	(31)		38.64	(6)		29.87
Expired	(3)		30.13	(1)		31.55
Outstanding at end of the period	106	$	31.18	129	$	28.22
Exercisable at end of the period	54	$	28.15	49	$	27.45

Restricted Stock Activity

A summary of outstanding restricted stock and award activity as of December 31, 2017 and 2016 are as follows:


	2017			2016
	Shares	Weighted-Average Grant Date Fair Value		Shares	Weighted-Average Grant Date Fair Value
(shares in thousands)
Outstanding at beginning of period	215	$	27.69	264	$	26.38
Granted	44		44.73	92		30.61
Vested	(120)		28.27	(102)		27.42
Forfeited	(10)		37.77	(39)		26.43
Outstanding at end of the period	129	$	32.15	215	$	27.69