Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2020

Compensation Related Costs [Abstract]

Schedule of stock-based compensation costs

The table below summarizes our stock-based compensation expense:

	Three months ended June 30,				Six months ended June 30,
(in thousands)	2020		2019		2020		2019
Stock-settled awards:
SARs	$	—	$	—	$	—	$	6
RSUs	3,313		3,110		6,532		5,517
Restricted stock	9		9		17		19
Cash-settled units	338		1,338		480		3,403
Total	$	3,660	$	4,457	$	7,029	$	8,945

Schedule of unrecognized compensation costs

(in thousands except period data)	June 30, 2020
Unrecognized compensation expense related to unvested stock-settled awards	$	31,132
Weighted average period over which expense is expected to be recognized, in years	3.0