Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 56,352	$ 87,878
Receivables, net	265,866	214,307
Inventories	165,336	143,612
Prepaid expenses and other current assets	17,483	17,143
Total current assets	505,037	462,940
Property, plant and equipment, net	315,320	303,654
Goodwill	43,620	19,995
Other intangible assets, net	30,004	6,067
Deferred tax assets	4,753	1,747
Other assets	3,982	3,780
Total assets	902,716	798,183
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current debt	1,518	83,368
Accounts payable	88,648	65,281
Accrued liabilities	68,248	31,152
Total current liabilities	158,414	179,801
Long-term debt, less current portion	158,957	72,900
Deferred tax liabilities	31,580	38,743
Other noncurrent liabilities	6,285	6,196
Total liabilities	355,236	297,640
Commitments and contingencies (Note 15)
Commitments and contingencies (Note 15)
Stockholders' Equity
Common stock, $0.01 par value, 200,000,000 shares authorized and 104,571,839 and 99,843,094 shares issued, respectively	1,046	998
Paid-in capital	603,849	558,966
Accumulated other comprehensive loss	(53,219)	(63,208)
Retained earnings	123,375	129,873
Treasury stock, at cost; 15,366,504 and 15,162,050 shares, respectively	(127,571)	(126,086)
Total stockholders’ equity	547,480	500,543
Total liabilities and stockholders' equity	$ 902,716	$ 798,183