Equity-based Compensation - Additional Information (Details) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 30, 2018 USD ($) Executive $ / shares shares	Mar. 31, 2017 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock and stock units, granted \| shares	261,496	7,500
Employee Stock Option [Member] \| 2010 Equity Award Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	34.90%
Expected dividend yield	0.00%
Risk-free rate of return	2.40%
Stock options granted \| shares	13,100	0
Stock options granted, fair value	$ 1.91
Stock option vest, fair value	$ 6.45
Expected term	3 years 8 months 12 days
Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock and stock units, granted \| shares	41,021
Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock and stock units, granted \| shares	216,600
Increase in stock price	$ 8.18
Vesting period	3 years
Expected volatility	34.50%
Expected dividend yield	0.00%
Risk-free rate of return	2.47%
Stock options granted \| shares		0
Granted units \| Executive	1
Stock option fair value vested \| $	$ 0.1
Stock option fair value vesting period	3 years
Performance Shares [Member] \| Stock Vesting, One Year From Grant Date [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of shares to be increased before vesting period	50.00%
Increase in stock price	$ 12.27
Shares performance period	30 days
Vesting period	3 years
Shares vesting percentage	50.00%
Derived services period	1 year 3 months 3 days
Performance Shares [Member] \| Stock Vesting, One Year From Grant Date [Member] \| Binomial Model [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share price to be increased before vesting period	$ 2.30
Performance Shares [Member] \| Stock Vesting, Two Year From Grant Date [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of shares to be increased before vesting period	100.00%
Increase in stock price	$ 16.36
Shares performance period	30 days
Vesting period	3 years
Shares vesting percentage	50.00%
Derived services period	1 year 10 months 6 days
Performance Shares [Member] \| Stock Vesting, Two Year From Grant Date [Member] \| Binomial Model [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share price to be increased before vesting period	$ 1.30
Non Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years	4 years
Shares vesting percentage	33.00%
Non Performance Shares [Member] \| Stock Vesting, One Year From Grant Date [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting percentage	33.00%	25.00%
Non Performance Shares [Member] \| Stock Vesting, Two Year From Grant Date [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting percentage	33.00%	25.00%
Non Performance Shares [Member] \| Share-based Compensation Award, Tranche Three
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting percentage	33.00%	25.00%
Non Performance Shares [Member] \| Stock Vesting, Four Year From Grant Date [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting percentage		25.00%

Share based compensation arrangement by share based payment award fair value granted.

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Share based compensation arrangement by share based payment award fair value vesting period.

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Share-based compensation arrangement by share-based payment award percentage of shares to be increased before vesting period.

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- Definition

Share-based compensation arrangement by share-based payment award, share performance period.

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Share based compensation arrangement by share based payment granted unit.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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.

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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- Definition

Percentage of vesting of share-based compensation awards.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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- Definition

Weighted average grant-date fair value of options vested.

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