XML 131 R87.htm IDEA: XBRL DOCUMENT

Stock-based compensation (Tables)

12 Months Ended

Dec. 31, 2018

Executive Officers

Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]

(Not in thousands)	Shares		Weighted-average grant date fair value
Non-vested at January 1, 2016	495,731	$	28.25
Granted	344,488		25.86
Performance Shares Quantity Adjustment	39,566		24.37
Vested	(487,784)		27.72
Forfeited	(8,019)		29.13
Non-vested at December 31, 2016	383,982	$	26.35
Granted	212,200		42.57
Performance Shares Quantity Adjustment	(232,989)		29.10
Vested	(67,853)		48.54
Non-vested at December 31, 2017	295,340	$	30.75
Granted	239,062		45.81
Performance Shares Quantity Adjustment	234,076		33.09
Vested	(372,271)		35.83
Forfeited	(14,021)		37.35
Non-vested at December 31, 2018	382,186	$	36.41

Directors

Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]

(Not in thousands)	Restricted stock		Weighted-average grant date fair value
Non-vested at January 1, 2016	-		-
Granted	40,517	$	29.77
Vested	(40,517)		29.77
Forfeited	-		-
Non-vested at December 31, 2016	-		-
Granted	25,771	$	38.42
Vested	(25,771)		38.42
Forfeited	-		-
Non-vested at December 31, 2017	-		-
Granted	25,159	$	46.71
Vested	(25,159)		46.71
Forfeited	-		-
Non-vested at December 31, 2018	-		-