Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2016
Net income (loss)	$ 20,312	[1]	$ (10,163)	$ (9,263)
Other comprehensive income (loss), net of tax:
Pension liability adjustment	(115)		57	131
Unrealized gain (loss) on cash flow hedges	24		(19)	(76)
Other comprehensive income (loss), net of tax	(91)		38	55
Comprehensive income (loss)	$ 20,221		$ (10,125)	$ (9,208)

[1] Net income for the third quarter of 2018 includes a preliminary bargain purchase gain of $21.9 million. Net income for the fourth quarter of 2018 includes a measurement period adjustment of $1.8 million to decrease the bargain purchase gain.