Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 16,972	$ 24,586
Receivables, net	204,294	194,066	[1]
Inventory	37,151	36,854
Income tax receivable	1,284	1,474
Prepaid expenses and other current assets	61,451	26,752
Total current assets	321,152	283,732
Property, plant and equipment, net	160,869	170,309
Operating lease right-of-use assets	63,471	63,869
Intangible assets, net	93,228	103,282
Goodwill	34,181	91,351
Deferred income taxes	0	6,790
Other assets, net	12,530	11,642
Total assets	685,431	730,975
Current liabilities:
Accounts payable	49,030	42,148
Current portion of long-term debt and finance lease obligations	663	337
Current portion of operating lease obligations	16,502	17,375
Other accrued liabilities	115,693	73,144
Total current liabilities	181,888	133,004
Long-term debt and finance lease obligations	362,965	312,159
Operating lease obligations	51,867	52,207
Defined benefit pension liability	1,674	5,282
Deferred income taxes	2,317	4,375
Other long-term liabilities	9,283	9,345
Total liabilities	609,994	516,372
Commitments and contingencies
Equity:
Preferred stock, 500,000 shares authorized, none issued	0	0
Common stock, par value $0.30 per share, 60,000,000 shares authorized; 30,980,014 and 30,874,437 shares issued	9,289	9,257
Additional paid-in capital	428,031	422,589
Retained deficit	(332,531)	(189,565)
Accumulated other comprehensive loss	(29,352)	(27,678)
Total equity	75,437	214,603
Total liabilities and equity	$ 685,431	$ 730,975

[1] Includes billed and unbilled amounts, net of allowance for credit losses. See Note 3 for details.