Share Based Compensation Share Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

A summary of changes in the common shares subject to nonvested PBRSUs for the six months ended June 30, 2018 follows:

	Common shares subject to PBRSUs
Nonvested at January 1, 2018	116,716
Granted	48,053
Vested	(18,800	)
Forfeited	(4,655	)
Adjustment for performance conditions of PBRSUs (1)	(2,320	)
Nonvested at June 30, 2018	138,994

Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]

The following table details expected additional share-based compensation expense related to PBRSUs outstanding as of June 30, 2018:

(In thousands)
Six months ending December 31, 2018	$	1,809
2019	3,084
2020	2,061
2021	841
2022	132
Total	$	7,927