Capital Stock and Equity Awards (Tables)

3 Months Ended

Mar. 31, 2020

Stockholders' Equity Note [Abstract]

Schedule of dividends

The Company declared the following dividends during the first three months of 2020 and 2019:

Date of Declaration	Dividend per Common Share		Payable to Shareholders of Record on	Payment Date	Total Amount (thousands)
2020
February 19, 2020	$	0.30	March 16, 2020	March 31, 2020	$	9,269
2019
February 20, 2019	$	0.30	March 11, 2019	March 29, 2019	$	9,146

Schedule of summary of option activity

The following table summarizes option activity:

	Three Months Ended March 31,
	2020			2019
	Shares	Weighted- Average Exercise Price		Shares		Weighted- Average Exercise Price
Outstanding:
Beginning of period	643,851	$	30.41	1,115,324		$	29.02
Granted	—	$	—	—		$	—
Exercised	—	$	—	(125,349	)	$	29.47
Forfeited	—	$	—	(3,759	)	$	36.37
End of period	643,851	$	30.41	986,216		$	28.94
Exercisable, end of period	640,606	$	30.35	926,166		$	28.07

Schedule of summary of RSU activity

The following table summarizes RSU activity:

	Three Months Ended March 31,
	2020				2019
	Shares		Weighted- Average Grant Date Fair Value		Shares		Weighted- Average Grant Date Fair Value
Unvested, beginning of period	340,368		$	41.50	300,142		$	39.22
Granted	179,016		$	43.55	167,295		$	42.07
Vested	(142,830	)	$	41.16	(109,545	)	$	39.93
Forfeited	(1,188	)	$	42.07	(1,398	)	$	40.26
Unvested, end of period	375,366		$	42.61	356,494		$	40.33

Schedule of summary of amount of expense and related tax benefit

Share based compensation expense is recognized on a straight line basis over the vesting period. The amount of expense and related tax benefit is summarized below:

	Three Months Ended March 31,
	2020		2019
	(in thousands)
Share based compensation expense	$	1,867	$	1,674
U.S. tax benefit on share based compensation expense	250		200