CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total		Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings (Accumulated Deficit)	Retained Earnings (Accumulated Deficit) Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive income (loss)
Beginning balance (in shares) at Dec. 31, 2021				3,122
Beginning balance at Dec. 31, 2021	$ 51,867		$ (1,824)	$ 936	$ 453,247	$ (5,650)	$ (375,584)	$ 3,826	$ (26,732)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	70,079	[1]					70,079
Foreign currency translation adjustment	(6,589)								(6,589)
Defined benefit pension plans, net of tax	(5,676)								(5,676)
Non-cash compensation	247				247
Net settlement of vested stock awards (in shares)				1,221
Net settlement of vested stock awards	9,656			$ 367	9,289
Ending balance (in shares) at Dec. 31, 2022				4,343
Ending balance at Dec. 31, 2022	117,760			$ 1,303	457,133		(301,679)		(38,997)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(75,722)	[1]					(75,722)
Foreign currency translation adjustment	3,028								3,028
Defined benefit pension plans, net of tax	(963)								(963)
Non-cash compensation	1,590				1,590
Net settlement of vested stock awards (in shares)				72
Net settlement of vested stock awards	(97)			$ 12	(109)
Ending balance (in shares) at Dec. 31, 2023				4,415
Ending balance at Dec. 31, 2023	$ 45,596			$ 1,315	$ 458,614		$ (377,401)		$ (36,932)

[1] Consolidated statement of cash flows for the year ended December 31, 2022 includes cash flows from discontinued operations. See Note 2.