Stock-based compensation (Tables)

3 Months Ended

Mar. 31, 2020

Executive Officers

Schedule of Unvested Restricted Stock Units Roll Forward

The following table summarizes the restricted stock and performance shares activity under the Incentive Plan for members of management.

(Not in thousands)	Shares		Weighted-Average Grant Date Fair Value
Non-vested at December 31, 2018	382,186	$	36.41
Granted	218,169		55.55
Performance Shares Quantity Adjustment	15,061		55.72
Vested	(270,051)		44.73
Non-vested at December 31, 2019	345,365	$	41.68
Granted	152,521		47.68
Performance Shares Quantity Adjustment	(7)		48.79
Vested	(160,333)		44.17
Non-vested at March 31, 2020	337,546	$	42.83

Directors

Schedule of Unvested Restricted Stock Units Roll Forward

The following table summarizes the restricted stock activity under the Incentive Plan for members of the Board of Directors:

(Not in thousands)	Restricted Stock shares		Weighted-Average Grant Date Fair Value per Share	Restricted Stock units		Weighted-Average Grant Date Fair Value per Unit
Non-vested at December 31, 2018	-	$	-	-	$	-
Granted	1,052		49.25	27,449		57.64
Vested	(1,052)		49.25	(27,449)		57.64
Forfeited	-		-	-		-
Non-vested at December 31, 2019	-	$	-	-	$	-
Granted	-		-	298		59.29
Vested	-		-	(298)		59.29
Forfeited	-		-	-		-
Non-vested at March 31, 2020	-	$	-	-	$	-