Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2020

Compensation Related Costs [Abstract]

Schedule of stock-based compensation costs

The table below summarizes our stock-based compensation expense:

	Three months ended March 31,
(in thousands)	2020		2019
Stock-settled awards:
SARs	$	—	$	6
RSUs	3,219		2,407
Restricted stock	8		10
Cash-settled performance units	142		2,065
Total	$	3,369	$	4,488

Schedule of unrecognized compensation costs

(in thousands except period data)	March 31, 2020
Unrecognized compensation expense related to unvested stock-settled awards	$	34,996
Weighted average period over which expense is expected to be recognized, in years	3.3