Stock Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2018

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

Schedule of Valuation Assumptions Used to Determine Fair Value

	2018
Risk free interest rate	2.34	%
Dividend yield	—	%
Volatility factor of the expected market price of the common shares	0.37
Expected term (in years)	2.83
Correlation coefficient	0.43

The weighted average assumptions used in the determination of fair value for stock option awards were as follows:

	2015
Risk free interest rate	1.80	%
Dividend yield	1.58	%
Volatility factor of the expected market price of the common shares	0.35
Expected life for the options (in years)	5.50

Schedule of Reconciliation of Options Outstanding

A reconciliation of the number of Options outstanding and exercisable under the 2014 LT Plan as of December 31, 2018, and changes during the period then ended, is as follows:

	Shares (in thousands)	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value (000's)
Options outstanding at January 1, 2018	325	$	35.40
Options granted	—	—
Options exercised		—
Options cancelled / forfeited	—	—
Options outstanding at December 31, 2018	325	$	35.40	—	$	—
Vested and expected to vest at December 31, 2018	325	$	35.40	—	$	—
Options exercisable at December 31, 2018	325	$	35.40	—	$	—

Schedule of Options Granted and Exercised

	Year ended December 31,
(in thousands)	2018
Total intrinsic value of Options exercised	$	—
Total fair value of shares vested	$	1,123
Weighted average fair value of Options granted	$	—

Schedule of Nonvested Restricted Shares

A summary of the status of the Company's non-vested restricted shares as of December 31, 2018, and changes during the period then ended, is presented below:

	Shares (in thousands)		Weighted-Average Grant-Date Fair Value
Non-vested restricted shares at January 1, 2018	229		$	34.22
Granted	133		34.36
Vested	(137	)	34.25
Forfeited	(7	)	35.23
Non-vested restricted shares at December 31, 2018	218		$	34.25

	Year ended December 31,
	2018		2017		2016
Total fair value of shares vested (000's)	$	4,681	$	3,751	$	4,038
Weighted average fair value of restricted shares granted	$	34.36	$	37.13	$	27.20

Schedule of Nonvested PSUs

A summary of the status of the Company's PSUs as of December 31, 2018, and changes during the period then ended, is presented below:

	Shares (in thousands)		Weighted-Average Grant-Date Fair Value
Non-vested at January 1, 2018	183		$	33.26
Granted	97		46.51
Vested	—		—
Forfeited	(33	)	36.57
Non-vested at December 31, 2018	247		$	38.02

	Year ended December 31,
	2018		2017		2016
Weighted average fair value of PSUs granted	$	46.51	$	42.53	$	26.43

A summary of the status of the Company's EPS PSUs as of December 31, 2018, and changes during the period then ended, is presented below:

	Shares (in thousands)		Weighted-Average Grant-Date Fair Value
Non-vested at January 1, 2018	275		$	36.61
Granted	97		35.36
Vested	—		—
Forfeited	(125	)	41.85
Non-vested at December 31, 2018	247		$	33.47

	Year ended December 31,
	2018		2017		2016
Weighted average fair value of PSUs granted	$	35.36	$	39.20	$	27.54

Schedule of Fair Value of the Option Component of the ESP Plan

	2018		2017		2016
Risk free interest rate	2.57	%	1.76	%	0.61	%
Dividend yield	2.23	%	2.06	%	1.96	%
Volatility factor of the expected market price of the common shares	0.33		0.28		0.36
Expected life for the options (in years)	1.00		1.00		1.00