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.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Unrecognized cost of unvested options awarded to employees as compensation.

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No definition available.

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Weighted average expected volatility of stock price.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Net number of non-option equity instruments granted to participants.

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Percentage of vesting of share-based compensation awards.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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Stock-Based Compensation - Additional Information (Details) - USD ($)		1 Months Ended	3 Months Ended
	Mar. 31, 2013	Feb. 28, 2017	Mar. 31, 2017	Mar. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected life of stock options issued			3 years 6 months
Stock options vesting periods			3 years
Stock options grant expirations periods			4 years
Stock options issue or exercised			0
Unrecognized stock-based compensation cost			$ 5,195,000
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting periods		3 years
Number of shares granted to employees		612,000	612,000
Stock-based compensation expenses	$ 178,000			$ 95,000
Restricted Stock Units (RSUs) \| Vesting on First Anniversary
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage		40.00%
Restricted Stock Units (RSUs) \| Vesting on Second Anniversary
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage		30.00%
Restricted Stock Units (RSUs) \| Vesting on Third Anniversary
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage		30.00%
Stock Appreciation Rights (SARs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting periods		3 years
Stock options grant expirations periods		5 years
Number of shares granted to employees		700,000	700,000
Stock-based compensation expenses	$ 178,000			95,000
Stock Appreciation Rights (SARs) \| Vesting on First Anniversary
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage		40.00%
Stock Appreciation Rights (SARs) \| Vesting on Second Anniversary
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage		30.00%
Stock Appreciation Rights (SARs) \| Vesting on Third Anniversary
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage		30.00%
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expenses			$ 178,000	$ 95,000
Predecessor
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average volatility rate of common share price			58.60%
Cash dividend on common shares			$ 0