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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Fair Value Measurements - Summary of Fair Value Estimates for Financial and Nonfinancial Assets and Liabilities Measured at Fair Value on Nonrecurring basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Oct. 02, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Vandalia property, plant and equipment	$ 14,000			$ 58,100
Vandalia intangible assets subject to amortization	6,900
Vandalia goodwill	454,612		$ 443,529	$ 448,399
NN Life Sciences Vandalia LLC [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Vandalia current assets	10,166	$ 10,166
Vandalia property, plant and equipment	13,981	13,981
Vandalia intangible assets subject to amortization	6,900	6,900
Vandalia other non-current assets	29	29
Vandalia goodwill	9,452	9,452
Vandalia non-current liabilities	(1,794)	(1,794)
Net assets acquired	38,734	$ 38,734
Significant Unobservable Inputs (Level 3) [Member] \| NN Life Sciences Vandalia LLC [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Vandalia current assets	10,166
Vandalia property, plant and equipment	13,981
Vandalia intangible assets subject to amortization	6,900
Vandalia other non-current assets	29
Vandalia goodwill	9,452
Vandalia non-current liabilities	(1,794)
Net assets acquired	$ 38,734