Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-02(29))
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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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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.

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No definition available.

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Shareholder's Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	5 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Feb. 11, 2016	Feb. 10, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Ordinary shares, shares authorized		50,000,000					50,000,000
Ordinary shares, par value		$ 0.001					$ 0.001
Ordinary shares, shares issued		5,000,053					5,000,053
Ordinary shares, shares outstanding		5,000,053					5,000,053
Predecessor
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Ordinary shares, shares authorized				50,000,000	50,000,000			50,000,000
Ordinary shares, par value				$ 0.001	$ 0.001			$ 0.001
Ordinary shares, shares issued				1,000	1,000			1,000
Ordinary shares, shares outstanding				1,000	1,000			1,000
Ownership percentage by parent				100.00%
Share based compensation expense allocated from VDC	$ 1.6		$ 3.4	$ 5.8	$ 7.9	$ 6.7
VDC Note
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share issued during period for repayment of debt		5,000,053