Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 24,611	$ 48,138
Accounts receivable, net	83,990	84,615
Inventories	75,321	62,517
Income tax receivable	11,742	8,800
Other current assets	11,837	11,148
Total current assets	207,501	215,218
Property, plant and equipment, net	212,468	223,690
Operating lease right-of-use assets	47,449	50,264
Intangible assets, net	92,305	103,065
Investment in joint venture	30,799	26,983
Deferred tax assets	131	0
Other non-current assets	4,053	5,742
Total assets	594,706	624,962
Current liabilities:
Accounts payable	44,033	37,435
Accrued salaries, wages and benefits	18,858	21,296
Income tax payable	1,339	3,557
Current maturities of long-term debt	3,355	4,885
Current portion of operating lease liabilities	5,505	4,797
Other current liabilities	11,983	31,261
Total current liabilities	85,073	103,231
Deferred tax liabilities	8,344	11,178
Long-term debt, net of current portion	151,323	79,025
Operating lease liabilities, net of current portion	52,417	55,053
Other non-current liabilities	21,337	17,237
Total liabilities	318,494	265,724
Commitments and contingencies (Note 11)
Common stock - $0.01 par value per share, 90,000 shares authorized, 42,686 and 43,034 shares issued and outstanding at December 31, 2020 and September 30, 2021, respectively	430	427
Additional paid-in capital	476,540	493,332
Accumulated deficit	(219,556)	(205,875)
Accumulated other comprehensive loss	(32,585)	(33,732)
Total stockholders’ equity	224,829	254,152
Total liabilities, preferred stock, and stockholders’ equity	594,706	624,962
Series D Preferred Stock
Current liabilities:
Perpetual and convertible preferred stock	51,383	0
Series B Preferred Stock
Current liabilities:
Perpetual and convertible preferred stock	$ 0	$ 105,086