Quarterly report pursuant to Section 13 or 15(d)

Composition of Certain Financial Statement Captions (Details)

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Composition of Certain Financial Statement Captions (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Accounts receivable, net:    
Accounts receivable $ 142,605 $ 145,665
Less: allowance for doubtful accounts (1,840) (1,758)
Accounts receivable, net 140,765 143,907
Inventories, net:    
Consumable supplies 23,022 23,264
Finished products 22,137 15,259
Work in-process 3,239 2,473
Raw materials 4,264 4,259
Less: inventory reserve (2,553) (2,956)
Inventory, net 50,109 42,299
Other current assets and prepaid expenses:    
Taxes recoverable 19,705 15,708
Other receivables 194 2,368
Prepaid supplies 8,915 9,693
Prepaid insurance 5,160 3,436
Other 3,327 3,847
Other current assets and prepaid expenses 37,301 35,052
Intangible assets, net:    
Less: accumulated amortization (306,140) (258,539)
Intangible assets, net 564,310 614,452
Accrued expenses:    
Contract liabilities 30,951 63,503
Employee benefits 34,138 45,621
Clinical trials 9,975 10,401
Contingent consideration 2,375 2,375
Finance leases short-term 2,983  
Finance leases short-term   3,280
Milestone payment 5,000 4,871
Professional fees 2,877 7,935
Other 84,435 65,527
Accrued expenses 172,734 203,513
Other long-term liabilities:    
Contract liabilities 3,257 27,566
Line of credit 50,644 105,198
Contingent consideration 22,084 22,162
Mortgages and other debts payable 4,091 4,654
Finance leases long-term 4,325  
Finance leases long-term   5,620
Other 27,558 33,768
Other long-term liabilities 111,959 198,968
Customer relationships    
Intangible assets, net:    
Intangible assets 444,524 446,296
Technologies    
Intangible assets, net:    
Intangible assets 340,539 340,729
Trade names    
Intangible assets, net:    
Intangible assets 49,779 50,404
Licenses    
Intangible assets, net:    
Intangible assets 5,766 5,766
Covenants not to compete    
Intangible assets, net:    
Intangible assets 16,314 16,322
Product registrations    
Intangible assets, net:    
Intangible assets 7,554 7,861
Other    
Intangible assets, net:    
Intangible assets $ 5,974 $ 5,613