CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Current Assets:        
Cash and cash equivalents $ 51,597 $ 109,425 $ 33,162 $ 69,801
Accounts receivable, less allowances of $2,663 and $3,588, respectively 209,919 195,165    
Inventories:        
Raw materials 69,639 64,002    
Work in process 24,621 25,319    
Finished goods 67,696 61,082    
Total inventory 161,956 150,403    
Prepaid expenses and other current assets 26,850 24,647    
Deferred income taxes 0 11,261    
Total current assets 450,322 490,901    
Property and Equipment, at cost:        
Land 8,249 8,175    
Buildings and improvements 67,951 66,321    
Machinery and equipment 413,565 385,750    
Total property and equipment 489,765 460,246    
Less accumulated depreciation (324,209) (299,243)    
Total property and equipment, net 165,556 161,003    
Other Assets:        
Intangible assets, net 104,159 128,384    
Goodwill 478,514 477,739    
Other 8,843 8,545    
Total other assets 641,863 614,668    
Total Assets 1,257,741 1,266,572    
Current Liabilities:        
Accounts payable 75,398 74,496    
Accrued expenses 169,015 152,962    
Tax receivable agreement payable - current 25,383 3,005    
Long-term Debt, Current Maturities 4,300 4,300    
Total current liabilities 274,096 234,763    
Deferred income taxes 2,722 21,387    
Tax receivable agreement payable - noncurrent 54,336 20,811    
Other long-term liabilities 86,395 90,893    
Long-term debt 836,086 975,531    
Commitments and contingencies    
Stockholders' Equity (Deficit)        
Preferred stock $0.01 par, 50,000,000 shares authorized, none issued and outstanding 0 0    
Common stock $0.01 par, 250,000,000 shares authorized, 68,269,749 and 68,127,491 issued and outstanding, respectively 683 681    
Additional paid-in-capital 751,452 749,296    
Accumulated deficit (714,737) (790,224)    
Accumulated other comprehensive loss (33,292) (36,566) (19,975) (3,214)
Total stockholders' equity (deficit) 4,106 (76,813) $ (96,668) $ (51,996)
Total Liabilities and Stockholder's Deficit $ 1,257,741 $ 1,266,572