Redeemable Noncontrolling Interest- Additional Information (Details) - Laser Quantum $ in Thousands, £ in Millions	Jan. 10, 2017 USD ($)	Jan. 10, 2017 GBP (£)	Dec. 31, 2016
Minority Interest [Line Items]
Percentage of equity interest held before acquisition	41.00%	41.00%	41.00%
Percentage of equity interest held after acquisition	76.00%	76.00%
Initial fair value of noncontrolling interest	$ 21,582	£ 17.7

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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- Definition

Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

+ References

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- Definition

Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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