Equity grant policy effective date.

No definition available.

Name:	seas_EquityGrantPolicyEffectiveDate
Namespace Prefix:	seas_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The length of the performance period related to the Long Term Incentive performance-vesting shares.

+ References

No definition available.

+ Details

Name:	seas_LengthOfPerformancePeriod
Namespace Prefix:	seas_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of performance restricted shares not considered probable of vesting based on company's progress toward performance goal.

+ References

No definition available.

+ Details

Name:	seas_NumberOfCommonStockSharesNotProbableOfVestingCurrent
Namespace Prefix:	seas_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of directors.

+ References

No definition available.

+ Details

Name:	seas_NumberOfDirectors
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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of senior executives who agreed to forfeit their remaining unvested shares under the modification of award.

+ References

No definition available.

+ Details

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Namespace Prefix:	seas_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of bonus which is payable in cash.

+ References

No definition available.

+ Details

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Namespace Prefix:	seas_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of bonus which is payable in performance-vesting restricted shares based on the Company's achievement of performance goals

+ References

No definition available.

+ Details

Name:	seas_PercentageOfBonusInShare
Namespace Prefix:	seas_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of total granted shares which can be earned at the end of each performance period.

+ References

No definition available.

+ Details

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Namespace Prefix:	seas_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of remaining unvested shares held by Senior executives which will forfeit under the modification of award.

+ References

No definition available.

+ Details

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Namespace Prefix:	seas_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of restricted shares to vest under modification of award.

+ References

No definition available.

+ Details

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Namespace Prefix:	seas_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of specified performance goal weighted to Adjusted EBITDA margin.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of specified performance goal weighted to Adjusted EBITDA.

+ References

No definition available.

+ Details

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Namespace Prefix:	seas_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of specified performance goal weighted to return on invested capital.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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- Definition

Percentage of specified performance goal weighted to total revenue.

+ References

No definition available.

+ Details

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Namespace Prefix:	seas_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share based compensation arrangement by share based payment award award vesting installments.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

The number of shares awarded 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). Represents total shares that could be earned under the maximum performance level of achievement for all performance periods.

+ References

No definition available.

+ Details

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Namespace Prefix:	seas_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of performance shares eligible to vest per year.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Performance goals upon achievement of which share based compensation is expected to vest.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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- Definition

Share-based compensation arrangement by share-based payment award vesting description.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

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

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Period Type:	instant

- Definition

Amount of paid and unpaid cash dividends declared and applicable to holders of share-based compensation, for example, but not limited to, non-vested shares, stock options, or restricted stock units.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

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- Definition

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.

+ References

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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).

+ References

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

+ References

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

For each plan, identification of the award pricing model or other valuation method used in calculating the weighted average fair values disclosed. The model is also used to calculate the compensation expense that is shown within the balance sheet, income statement, and cash flow. Examples of valuation techniques are lattice models (binomial model), closed-form models (Black-Scholes-Merton formula), and a Monte Carlo simulation technique. Fair value is the amount at which an asset or liability could be bought or incurred or sold or settled in a current transaction between willing parties, that is, other than in a forced or liquidation sale. May include disclosures about the assumptions underlying application of the method selected.

+ References

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of vesting of share-based compensation awards.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

+ Details

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Data Type:	xbrli:durationItemType
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Period Type:	duration

- 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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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
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Period Type:	duration

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- Details

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Equity-Based Compensation - Additional Information (Detail)							1 Months Ended		3 Months Ended		6 Months Ended	12 Months Ended
	Nov. 06, 2017 shares	Oct. 11, 2017 shares	Jun. 14, 2017 shares	May 08, 2017 USD ($)	Mar. 03, 2017 shares	Apr. 08, 2013	Aug. 31, 2017 shares	Apr. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($) Executive $ / shares	Dec. 31, 2017 USD ($) Director shares	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Jun. 13, 2017 shares	Apr. 01, 2016 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense \| $												$ 23,203,000	$ 37,515,000	$ 6,527,000
Recognized equity-based compensation expense \| $									$ 8,400,000
Unrecognized equity compensation cost \| $											$ 29,300,000	29,300,000
Total fair value of shares vested during the period \| $												13,753,000	32,164,000	$ 2,450,000
Accumulated dividends paid related to performance shares which vested during the period \| $												$ 1,270,000	$ 3,400,000
Unvested shares of common stock											4,240,991	4,240,991
Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares withheld from employees to satisfy minimum tax withholding obligation												129,293	89,180	42,221
2013 Omnibus Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for future issuance, gross															15,000,000
Shares available for future issuance											0	0
2013 Omnibus Incentive Plan [Member] \| Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for future issuance											71,656	71,656
2017 Omnibus Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for future issuance											7,466,524	7,466,524
Additional shares of authorized for issuance												0
2017 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of bonus payable in cash												50.00%
2016 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of bonus payable in cash													50.00%
2015 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of bonus payable in cash														50.00%
2017 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares												575,132
2017 Long-Term Incentive Plan Below Threshold Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												0.00%
2017 Long-Term Incentive Plan Threshold Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												50.00%
2017 Long-Term Incentive Plan Target Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												100.00%
2017 Long-Term Incentive Plan At or Above Maximum Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												200.00%
Long-Term Incentive Plan Below Threshold Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												0.00%
Long-Term Incentive Plan Threshold Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												50.00%
Long-Term Incentive Plan Target Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												100.00%
Long-Term Incentive Plan At or Above Maximum Performance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												200.00%
Pre-IPO Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant date fair value measuring method												The fair value of each Pre-IPO Incentive Plan 2.75x Performance Restricted shares originally granted was estimated on the date of grant using a composite of the discounted cash flow model and the guideline public company approach to determine the underlying enterprise value.
Pre-IPO Incentive Plan 2.75x Performance Restricted shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility						37.60%
2.75x Performance Restricted Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unvested shares of common stock											616,793	616,793	1,310,726
2.75x Performance Restricted Shares [Member] \| Upon Closing of Sale [Member] \| Modification of Vesting Conditions [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recognized equity-based compensation expense \| $				$ 8,400,000								$ 8,400,000
Percentage of restricted shares to vest										60.00%
Number of senior executives agreed to forfeit \| Executive										8
Percentage of restricted shares to forfeit by executives										40.00%
Acquisition price paid per share \| $ / shares										$ 23.00
Accumulated dividends paid related to performance shares which vested during the period \| $									$ 1,300,000
2.75x Performance Restricted Shares [Member] \| Upon Closing of Sale [Member] \| Modification of Vesting Conditions [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recognized equity-based compensation expense \| $												$ 8,400,000
2.25x Performance Restricted Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense \| $										$ 27,516,000			$ 27,516,000
Total fair value of shares vested during the period \| $													$ 27,516,000
Accumulated dividends paid related to performance shares which vested during the period \| $								$ 3,400,000
Unvested shares of common stock																1,370,821
Time Vesting and Performance Vesting Restricted Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value \| $ / shares												$ 17.71	$ 17.20	$ 18.76
Bonus Performance Restricted Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value \| $ / shares												$ 18.10
Granted shares												923,678
Unvested shares of common stock											805,245	805,245	451,289
Bonus Performance Restricted Shares [Member] \| 2017 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of bonus payable in shares												50.00%
Performance goals												Based upon the Company’s achievement of specified performance goals with respect to Fiscal 2017 Adjusted EBITDA (weighted at 50%), Total Revenue (weighted at 30%) and Adjusted EBITDA Margin (weighted at 20%).
Adjusted EBITDA performance goal weight												50.00%
Total revenue performance goal weight												30.00%
Adjusted EBITDA margin performance goal weight												20.00%
Equity grant effective date					Mar. 03, 2017
Granted shares					888,235
Bonus Performance Restricted Shares [Member] \| 2016 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense \| $													$ 0
Percentage of bonus payable in shares													50.00%
Bonus Performance Restricted Shares [Member] \| 2015 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense \| $														$ 0
Percentage of bonus payable in shares														50.00%
Below Threshold Performance Bonus Restricted Shares [Member] \| 2017 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												0.00%
Threshold Performance Bonus Restricted Shares [Member] \| 2017 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												30.00%
Target Performance Bonus Restricted Shares [Member] \| 2017 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												100.00%
At or Above Maximum Performance Bonus Restricted Shares [Member] \| 2017 Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												200.00%
Long-Term Incentive Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period												4 years
Vesting percentage, per year												25.00%
Long-Term Incentive Options, expiration period												10 years
Long-Term Incentive Time Restricted Shares [Member] \| 2017 Long-Term Incentive Plan [Member] \| Executives [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period												5 years
Long-Term Incentive Time Restricted Shares [Member] \| 2016 and 2015 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period												4 years
Vesting percentage, per year												25.00%
Long-Term Incentive Time Restricted Shares [Member] \| Third Anniversary [Member] \| 2017 Long-Term Incentive Plan [Member] \| Executives [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												33.00%
Long-Term Incentive Time Restricted Shares [Member] \| Fourth Anniversary [Member] \| 2017 Long-Term Incentive Plan [Member] \| Executives [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												33.00%
Long-Term Incentive Time Restricted Shares [Member] \| Fifth Anniversary [Member] \| 2017 Long-Term Incentive Plan [Member] \| Executives [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												33.00%
Long-Term Incentive Time Restricted Shares [Member] \| Employees [Member] \| Third Anniversary [Member] \| 2017 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period												3 years
Vesting percentage, per year												100.00%
Long-Term Incentive Performance Restricted Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense \| $												$ 0
Unrecognized equity compensation cost \| $											$ 29,100,000	$ 29,100,000
Weighted average grant date fair value \| $ / shares												$ 18.57
Granted shares												791,108
Unvested shares of common stock											864,572	864,572	212,369
Long-Term Incentive Performance Restricted Shares [Member] \| 2017 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Adjusted EBITDA performance goal weight												50.00%
Total revenue performance goal weight												30.00%
Performance period												3 years
Return on invested capital performance goal weight												20.00%
Long-Term Incentive Performance Restricted Shares [Member] \| 2015 and 2016 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period												3 years
Shares earned, percentage												33.00%
Long-Term Incentive Performance Restricted Shares [Member] \| Maximum Performance [Member] \| 2016 and 2015 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awarded shares												391,309
Long-Term Incentive Performance Restricted Shares [Member] \| Fiscal 2016 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares not probable of vesting													130,417
Long-Term Incentive Performance Restricted Shares [Member] \| Fiscal 2016 [Member] \| 2016 and 2015 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares												130,437
Long-Term Incentive Performance Restricted Shares [Member] \| Fiscal 2018 [Member] \| 2016 Long-Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awarded shares												101,869
Long-Term Incentive Performance Restricted Shares [Member] \| Fiscal 2017 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares not probable of vesting												130,437
Time-Vesting Restricted Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value \| $ / shares												$ 16.91
Granted shares												1,290,057
Unvested shares of common stock											1,852,512	1,852,512	1,323,025
Time-Vesting Restricted Shares [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares							214,580
Time-Vesting Restricted Shares [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member] \| Board Members [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares	10,723	17,542	56,232
Vesting percentage, per year			100.00%
Number of directors \| Director											3
Vesting period			three equal installments
Time-Vesting Restricted Shares [Member] \| Third Anniversary [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member] \| Board Members [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												33.00%
Time-Vesting Restricted Shares [Member] \| Fourth Anniversary [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member] \| Board Members [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												33.00%
Time-Vesting Restricted Shares [Member] \| Fifth Anniversary [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member] \| Board Members [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage, per year												33.00%
Time-Vesting Restricted Shares [Member] \| Tranche One [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares							170,601
Vesting percentage, per year							50.00%
Vesting description							vest 50% on each of the two anniversaries
Time-Vesting Restricted Shares [Member] \| Tranche Two [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares							15,000
Vesting percentage, per year							100.00%
Vesting description							vest 100% on the first anniversary
Time-Vesting Restricted Shares [Member] \| Tranche Three [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares							23,979
Vesting percentage, per year							100.00%
Vesting date							Oct. 11, 2018
Time-Vesting Restricted Shares [Member] \| Tranche Four [Member] \| Other 2017 Omnibus Incentive Plan Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares							5,000
Vesting percentage, per year							100.00%
Vesting date							Mar. 31, 2018
Omnibus Incentive Plan 2.75x Performance Restricted shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility												33.20%
Omnibus Incentive Plan 2.75x Performance Restricted shares [Member] \| Pre-IPO Incentive Plan 2.75x Performance Restricted shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected life (in years)						2 years						2 years
Risk- free interest rate						0.24%						0.24%
Fair value assumptions, dividend yield						0.00%						0.00%