Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 184,955	$ 224,446
Accounts receivable, net	119,615	108,446
Inventories	91,559	82,617
Income tax receivable	43,866	43,253
Other current assets	21,106	18,518
Total current assets	461,101	477,280
Property, plant and equipment, net	266,926	259,280
Goodwill	463,694	454,612
Intangible assets, net	237,605	237,702
Investment in joint venture	42,110	39,822
Other non-current assets	13,646	6,307
Total assets	1,485,082	1,475,003
Current liabilities:
Accounts payable	54,788	52,990
Accrued salaries, wages and benefits	26,496	21,145
Current maturities of long-term debt	18,796	17,283
Other current liabilities	22,264	17,003
Total current liabilities	122,344	108,421
Deferred tax liabilities	71,499	71,564
Non-current income tax payable	5,593	5,593
Long-term debt, net of current portion	787,438	790,805
Other non-current liabilities	13,349	12,516
Total liabilities	1,000,223	988,899
Commitments and contingencies (Note 12)
Total stockholders' equity	484,859	486,104
Total liabilities and stockholders' equity	$ 1,485,082	$ 1,475,003

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.