Six Flags Entertainment 10-Q 27 Apr 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 22, 2016
Document and Entity Information
Entity Registrant Name	Six Flags Entertainment Corp
Entity Central Index Key	701,374
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Current Reporting Status	Yes
Entity Common Stock, Shares Outstanding		93,274,927

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 22,588	$ 99,760
Accounts receivable, net	59,962	63,803
Inventories	37,644	21,535
Prepaid expenses and other current assets	51,723	42,879
Total current assets	171,917	227,977
Property and equipment, net:
Property and equipment, at cost	1,909,953	1,862,764
Accumulated depreciation	(690,054)	(664,610)
Total property and equipment, net	1,219,899	1,198,154
Other assets:
Debt issuance costs	5,087	5,386
Restricted-use investment securities	3,195	3,036
Deposits and other assets	7,137	7,211
Goodwill	630,248	630,248
Intangible assets, net of accumulated amortization of $15,344 and $14,676 as of March 31, 2016 and December 31, 2015 respectively	355,872	356,428
Total other assets	1,001,539	1,002,309
Total assets	2,393,355	2,428,440
Current liabilities:
Accounts payable	52,703	25,570
Accrued compensation, payroll taxes and benefits	19,254	46,583
Accrued insurance reserves	39,910	40,796
Accrued interest payable	9,134	19,555
Other accrued liabilities	32,114	34,714
Deferred income	130,240	97,334
Short-term borrowings	72,000	0
Current portion of long-term debt	7,520	7,506
Total current liabilities	362,875	272,058
Noncurrent liabilities:
Long-term debt	1,497,005	1,498,022
Other long-term liabilities	58,578	58,150
Deferred income taxes	112,362	140,273
Total noncurrent liabilities	1,667,945	1,696,445
Total liabilities	2,030,820	1,968,503
Redeemable noncontrolling interests	435,721	435,721
Stockholders' equity (deficit):
Common stock, $0.025 par value, 140,000,000 shares authorized; 93,250,339 and 91,550,851 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	2,331	2,289
Capital in excess of par value	1,052,913	1,041,710
Accumulated deficit	(1,062,725)	(953,225)
Accumulated other comprehensive loss, net of tax	(65,705)	(66,558)
Total stockholders' (deficit) equity	(73,186)	24,216
Total liabilities and equity (deficit)	$ 2,393,355	$ 2,428,440

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Accumulated amortization of intangible assets	$ 15,344	$ 14,676
Common stock, par value (in dollars per share)	$ 0.025	$ 0.025
Common stock, shares authorized	140,000,000	140,000,000
Common stock, shares issued	93,250,339	91,550,851
Common stock, shares outstanding	93,250,339	91,550,851

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues
Theme park admissions	$ 58,081	$ 40,546
Theme park food, merchandise and other	38,290	28,225
Sponsorship, licensing and other fees	14,432	11,442
Accommodations revenue	4,616	4,942
Total revenues	115,419	85,155
Operating expenses (excluding depreciation and amortization shown separately below)	94,111	83,362
Selling, general and administrative (including stock-based compensation of $2,006 and $22,307 in 2016 and 2015, respectively, and excluding depreciation and amortization shown separately below)	36,263	54,587
Costs of products sold	10,138	7,185
Depreciation	25,378	26,137
Amortization	650	658
(Gain) loss on disposal of assets	(483)	666
Interest expense	19,601	18,712
Interest income	(143)	(125)
Other expense (income), net	699	(72)
Loss before income taxes	(70,795)	(105,955)
Income tax benefit	(23,860)	(35,629)
Net loss	$ (46,935)	$ (70,326)
Earnings Per Share [Abstract]
Weighted-average number of common shares outstanding - basic and diluted:	92,359	93,855
Net loss per average common share outstanding - basic and diluted:	$ (0.51)	$ (0.75)
Cash dividends declared per common share	$ 0.58	$ 0.52

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Stock-based Compensation Expense	$ 2,006	$ 22,307

Condensed Consolidation Stateme

Condensed Consolidation Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net loss		$ (46,935)	$ (70,326)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	[1]	1,094	(2,744)
Defined benefit retirement plan	[2]	151	(142)
Change in cash flow hedging	[3]	(392)	(681)
Other comprehensive income (loss), net of tax		853	(3,567)
Comprehensive loss		$ (46,082)	$ (73,893)
[1]	Foreign currency translation adjustment is presented net of tax expense of $0.6 million and net of tax benefit of $1.5 million for the three months ended March 31, 2016 and March 31, 2015, respectively.
[2]	Defined benefit retirement plan is presented net of tax expense of $0.1 million and net of tax benefit of $0.1 million for the three months ended March 31, 2016 and March 31, 2015, respectively.
[3]	Change in cash flow hedging is presented net of tax benefit of $0.3 million and $0.4 million for the three months ended March 31, 2016 and March 31, 2015, respectively.

Condensed Consolidation Statem7

Condensed Consolidation Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustment, tax expense (benefit)	$ 0.6	$ (1.5)
Defined benefit retirement plan, tax benefit (expense)	(0.1)	0.1
Change in cash flow hedging, tax expense (benefit)	$ (0.3)	$ (0.4)

Condensed Consolidation Statem8

Condensed Consolidation Statements of Equity - USD ($) $ in Thousands	Total	Common stock	Capital in excess of par value	Accumulated deficit	Accumulated other comprehensive loss
Balances at Dec. 31, 2014	$ 223,895	$ 2,323	$ 983,317	$ (702,116)	$ (59,629)
Balances (in shares) at Dec. 31, 2014		92,937,619
Increase (Decrease) in Stockholders' Equity
Issuance of common stock	9,149	$ 53	9,096	0	0
Issuance of common stock (in shares)		2,107,415
Stock-based compensation	22,307	$ 0	22,307	0	0
Dividends declared to common stockholders	(48,391)	0	0	(48,391)	0
Repurchase of common stock	(8,479)	$ (4)	(1,553)	(6,922)	0
Repurchase of common stock (in shares)		(177,977)
Net loss	(70,326)	$ 0	0	(70,326)	0
Net other comprehensive income (loss), net of tax	(3,567)	0	0	0	(3,567)
Balances at Mar. 31, 2015	124,588	$ 2,372	1,013,167	(827,755)	(63,196)
Balances (in shares) at Mar. 31, 2015		94,867,057
Balances at Dec. 31, 2015	24,216	$ 2,289	1,041,710	(953,225)	(66,558)
Balances (in shares) at Dec. 31, 2015		91,550,851
Increase (Decrease) in Stockholders' Equity
Issuance of common stock	11,097	$ 47	11,050	0	0
Issuance of common stock (in shares)		1,914,994
Stock-based compensation	2,006	$ 0	2,006	0	0
Dividends declared to common stockholders	(53,115)	0	0	(53,115)	0
Repurchase of common stock	(11,308)	$ (5)	(1,853)	(9,450)	0
Repurchase of common stock (in shares)		(215,506)
Net loss	(46,935)	$ 0	0	(46,935)	0
Net other comprehensive income (loss), net of tax	853	0	0	0	853
Balances at Mar. 31, 2016	$ (73,186)	$ 2,331	$ 1,052,913	$ (1,062,725)	$ (65,705)
Balances (in shares) at Mar. 31, 2016		93,250,339

Condensed Consolidation Statem9

Condensed Consolidation Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Cash Flows [Abstract]
Net loss	$ (46,935)	$ (70,326)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	26,028	26,795
Stock-based compensation	2,006	22,307
Interest accretion on notes payable	117	310
Amortization of debt issuance costs	1,066	1,188
Other, including (gain) loss on disposal of assets	(1,789)	248
Decrease in accounts receivable	3,682	12,759
Increase in inventories, prepaid expenses and other current assets	(24,720)	(14,299)
Decrease in deposits and other assets	74	732
Increase in accounts payable, deferred income, accrued liabilities and other long-term liabilities	26,308	17,782
Decrease in accrued interest payable	(10,421)	(10,473)
Deferred income taxes	(28,421)	(39,518)
Net cash used in operating activities	(53,005)	(52,495)
Cash flows from investing activities:
Additions to property and equipment	(42,885)	(34,032)
Property insurance recoveries	343	173
Purchase of identifiable intangible assets	0	(29)
Purchase of restricted-use investments, net	(159)	(145)
Proceeds from sale of assets	1,351	3
Net cash used in investing activities	(41,350)	(34,030)
Cash flow from financing activities:
Repayment of borrowings	(70,887)	(26,589)
Proceeds from borrowings	141,000	105,000
Payment of cash dividends	(53,110)	(48,776)
Proceeds from issuance of common stock	11,097	9,149
Stock repurchases	(11,308)	(8,479)
Net cash provided by financing activities	16,792	30,305
Effect of exchange rate on cash	391	(1,316)
Net decrease in cash and cash equivalents	(77,172)	(57,536)
Cash and cash equivalents at beginning of period	99,760	73,884
Cash and cash equivalents at end of period	22,588	16,348
Supplemental cash flow information
Interest Paid	28,825	27,686
Income Taxes Paid	$ 5,979	$ 3,835

General - Basis of Presentation

General - Basis of Presentation	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
General - Basis of Presentation	General — Basis of Presentation We own and operate regional theme and water parks and are the largest regional theme park operator in the world. Of the 18 parks we currently own or operate, 16 parks are located in the United States, one is located in Mexico City, Mexico and one is located in Montreal, Canada. We are also involved in the development of Six Flags-branded theme parks outside of North America. The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP"). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed, or omitted, pursuant to the rules and regulations of the SEC. "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations" contains a discussion of our results of operations and our financial position and should be read in conjunction with the unaudited condensed consolidated financial statements and notes. The 2015 Annual Report includes additional information about us, our operations and our financial position, and should be referred to in conjunction with this Quarterly Report. The information furnished in this Quarterly Report reflects all normal and recurring adjustments that are, in the opinion of management, necessary to present a fair statement of the results for the periods presented. Results of operations for the three months ended March 31, 2016 are not indicative of the results expected for the full year. In particular, our park operations contribute a substantial majority of their annual revenue during the period from Memorial Day to Labor Day each year, while expenses are incurred year round. a. Consolidated U.S. GAAP Presentation Our accounting policies reflect industry practices and conform to U.S. GAAP. The unaudited condensed consolidated financial statements include our accounts and the accounts of our wholly owned subsidiaries. We also consolidate the partnerships that own Six Flags Over Texas ("SFOT") and Six Flags Over Georgia (including Six Flags White Water Atlanta) ("SFOG", and together with SFOT, the "Partnership Parks") as subsidiaries in our unaudited condensed consolidated financial statements, as we have determined that we have the power to direct the activities of those entities that most significantly impact the entities' economic performance and we have the obligation to absorb losses and receive benefits from the entities that can be potentially significant to these entities. The equity interests owned by non-affiliated parties in the Partnership Parks are reflected in the accompanying condensed consolidated balance sheets as redeemable noncontrolling interests. See Note 7 for further discussion. b. Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, including net operating loss and other tax carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in operations in the period that includes the enactment date. We recorded a valuation allowance of $90.3 million and $88.4 million as of March 31, 2016 and December 31, 2015 , respectively, due to uncertainties related to our ability to utilize some of our deferred tax assets, primarily consisting of certain state net operating loss and other tax carryforwards, before they expire. The valuation allowance was based on our estimates of taxable income by jurisdiction in which we operate and the period over which our deferred tax assets were recoverable. Our projected taxable income over the foreseeable future gives us comfort that we will be able to utilize all of our federal net operating loss carryforwards before they expire. In determining the effective tax rate for interim periods, we consider the expected changes in our valuation allowance from current year originating or reversing timing differences between financial accounting and tax purposes and the taxable income or loss expected for the current year. For interim periods, we also account for the tax effect of significant non-recurring items in the period in which they occur as well as changes in the valuation allowance relating to a change in the assessment of the probability of utilization of the deferred income tax assets. Our liability for income taxes is finalized as auditable tax years pass their respective statutes of limitations in the various jurisdictions in which we are subject to tax. However, these jurisdictions may audit prior years for which the statute of limitations is closed for the purpose of making an adjustment to our taxable income in a year for which the statute of limitations has not closed. Accordingly, taxing authorities of these jurisdictions may audit prior years of the group and its predecessors for the purpose of adjusting net operating loss carryforwards to years for which the statute of limitations has not closed. We classify interest and penalties attributable to income taxes as part of income tax expense. As of March 31, 2016 and December 31, 2015 , we had no accrued interest and penalties liability. Because we do not permanently reinvest foreign earnings, United States deferred income taxes have been provided on unremitted foreign earnings to the extent that such foreign earnings are expected to be taxable upon repatriation. c. Long-Lived Assets We review long-lived assets, including finite-lived intangible assets subject to amortization, for impairment upon the occurrence of events or changes in circumstances that would indicate that the carrying value of the asset or group of assets may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the asset or group of assets to the future net cash flows expected to be generated by the asset or group of assets. If such assets are not considered to be fully recoverable, any impairment to be recognized is measured by the amount by which the carrying amount of the asset or group of assets exceeds its respective fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell. d. Derivative Instruments and Hedging Activities We account for derivatives and hedging activities in accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 815, Derivatives and Hedging . This accounting guidance establishes accounting and reporting standards for derivative instruments, including certain derivative instruments embedded in other contracts, and for hedging activities. It requires an entity to recognize all derivatives as either assets or liabilities in the condensed consolidated balance sheet and measure those instruments at fair value. If certain conditions are met, a derivative may be specifically designated as a hedge for accounting purposes. The accounting for changes in the fair value of a derivative (e.g., gains and losses) depends on the intended use of the derivative and the resulting designation. We formally document all relationships between hedging instruments and hedged items, as well as our risk-management objective and our strategy for undertaking various hedge transactions. This process includes linking all derivatives that are designated as cash flow hedges to forecasted transactions. We also assess, both at the hedge's inception and on an ongoing basis, whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in cash flows of hedged items. Changes in the fair value of a derivative that is effective and that is designated and qualifies as a cash flow hedge are recorded in other comprehensive income (loss) until operations are affected by the variability in cash flows of the designated hedged item, at which point they are reclassified to interest expense. Changes in the fair value of a derivative that is not designated as a hedge are recorded in other income (expense), net in the unaudited condensed consolidated statements of operations on a current basis. See Note 2 for further discussion. e. Earnings (Loss) Per Common Share Basic earnings (loss) per common share is computed by dividing net income (loss) attributable to Holdings' common stockholders by the weighted average number of common shares outstanding for the period. Diluted earnings (loss) per common share is computed by dividing net income (loss) attributable to Holdings' common stockholders by the weighted average number of common shares outstanding during the period and the effect of all dilutive common stock equivalents using the treasury stock method. In periods for which there is a net loss, diluted loss per common share is equal to basic loss per common share, since the effect of including any common stock equivalents would be antidilutive. We incurred a net loss for the three months ended March 31, 2016 and March 31, 2015 and therefore, diluted shares outstanding equaled basic shares outstanding. The computation of diluted earnings per share excluded the effect of 6,020,000 and 6,465,000 antidilutive stock options for the three months ended March 31, 2016 and March 31, 2015 , respectively. f. Stock Benefit Plans Pursuant to the Six Flags Entertainment Corporation Long-Term Incentive Plan (the "Long-Term Incentive Plan"), Holdings may grant stock options, stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, deferred stock units, performance and cash-settled awards and dividend equivalents to select employees, officers, directors and consultants of Holdings and its affiliates. In May 2015, our stockholders approved an amendment to the Long-Term Incentive Plan that increased the number of shares available for issuance under the Long-Term Incentive Plan by 5,000,000 shares from 28,133,332 shares to 33,133,332 shares. We recognize the fair value of each grant as compensation expense on a straight-line basis over the vesting period using the graded vesting terms of the respective grant. The fair value of stock option grants is estimated using the Black-Scholes option pricing valuation model. The fair value of stock, restricted stock units and restricted stock awards is the quoted market price of Holdings' stock on the date of grant. During the year ended December 31, 2011, a performance award was established based on our goal to achieve Modified EBITDA of $500 million by 2015 (the "2015 Performance Award"). "Modified EBITDA” is defined as the Company’s consolidated income from continuing operations: excluding the cumulative effect of changes in accounting principles; discontinued operations gains or losses; income tax expense or benefit; restructure costs or recoveries; reorganization items (net); other income or expense; gain or loss on early extinguishment of debt; equity in income or loss of investees; interest expense (net); gain or loss on disposal of assets; gain or loss on the sale of investees; amortization; depreciation; stock-based compensation; and fresh start accounting valuation adjustments. Based on the results of operations for the years ended December 31, 2014 and 2015, the 2015 Performance Award was issued in full, resulting in the issuance of approximately 1,511,100 shares and 1,314,000 shares, plus associated dividend equivalent rights, in February 2015 and 2016, respectively. During the three months ended March 31, 2016 , we recognized a reduction in stock-based compensation expense of $1.6 million as a result of the decline in the closing market price of Holdings' common stock on the date of issuance relative to December 31, 2015. During the three months ended March 31, 2016 and March 31, 2015 , stock-based compensation expense consisted of the following: Three Months Ended (Amounts in thousands) March 31, 2016 March 31, 2015 Long-Term Incentive Plan $ 1,906 $ 22,232 Employee Stock Purchase Plan 100 75 Total Stock-Based Compensation $ 2,006 $ 22,307 As of March 31, 2016 , options to purchase approximately 6,020,000 shares of common stock of Holdings and approximately 14,000 shares of restricted stock or restricted stock units were outstanding under the Long-Term Incentive Plan and approximately 3,367,000 shares were available for future grant. g. Revenue Recognition We recognize revenue upon admission into our parks, provision of our services or when products are delivered to our guests. Revenues are presented in the accompanying unaudited condensed consolidated statements of operations net of sales taxes collected from our guests and remitted or payable to government taxing authorities. During 2013, we launched a membership program. In contrast to our season pass and other multi-use offerings that expire at the end of each operating season, the membership program continues on a month-to-month basis after the initial twelve-month membership term and can be canceled any time after the initial term pursuant to the terms of the membership program. Guests enrolled in the membership program can visit our parks an unlimited number of times anytime they are open as long as the guest remains enrolled in the membership program. For season passes, memberships in the initial twelve-month term and other multi-use admissions, we estimate a redemption rate based on historical experience and other factors and assumptions we believe to be customary and reasonable and recognize a pro-rata portion of the revenue as the guest attends our parks. We review the estimated redemption rate regularly and on an ongoing basis and revise it as necessary throughout the year. Amounts received for multi-use admissions in excess of redemptions are recognized in deferred income. For active memberships after the initial twelve-month term, we recognize revenue monthly as payments are received. As of March 31, 2016 , deferred income was primarily comprised of (i) unredeemed season pass and all season dining pass revenue, (ii) pre-sold single-day admissions revenue for the current operating season, (iii) unredeemed portions of the membership program that will primarily be recognized in 2016 and (iv) sponsorship revenue that will primarily be recognized in 2016. We have entered into multiple agreements to assist third parties in the planning, design, development and operation of Six Flags-branded theme parks outside of North America. Pursuant to these agreements, we provide exclusivity, brand licensing and other services to assist in the design, development and project management of Six Flags-branded theme parks, as well as initial and ongoing management services. Each significant deliverable qualifies as a separate unit of accounting. We recognize revenue under these agreements over the relevant service period of each unit of accounting based on its relative selling price, as determined by our best estimate of selling price. Our best estimate of selling price is established consistent with our overall pricing strategy and includes, but is not limited to, consideration of current market conditions, various risk factors and our required return and profit objectives. We review the service period of each unit of accounting on an ongoing basis and revise it as necessary throughout the year. Revisions to the relevant service periods of the units of accounting may result in revisions to revenue in future periods and are recognized in the period in which the change is identified. h. Accounts Receivable, Net Accounts receivable are reported at net realizable value and consist primarily of amounts due from guests for the sale of group outings and multi-use admission products, including season passes and the membership program. We are not exposed to a significant concentration of credit risk, however, based on the age of the receivables, our historical experience and other factors and assumptions we believe to be customary and reasonable, we record an allowance for doubtful accounts. As of March 31, 2016 and December 31, 2015 , we have recorded an allowance for doubtful accounts of $5.1 million and $2.4 million , respectively, which is primarily comprised of estimated defaults under our membership plans. To the extent that our membership plans have not been recognized in revenue, the allowance for doubtful accounts recorded against our membership plans is offset with a corresponding reduction in deferred income. i. Recent Accounting Pronouncements In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). The amendments in ASU 2014-09 provide for a single, principles-based model for revenue recognition that replaces the existing revenue recognition guidance. In August 2015, the FASB issued Accounting Standards Updated 2015-14, Revenue from Contracts with Customers - Deferral of the Effective Date , to defer the effective date of ASU 2014-09 for one year. Therefore, the new guidance will be effective for annual and interim periods beginning after December 15, 2017 and will replace most existing revenue recognition guidance under U.S. GAAP when it becomes effective. In March and April 2016, the FASB issued Accounting Standards Update No. 2016-08 and No. 2016-10, Revenue from Contracts with Customers (Topic 606) and Principal versus Agent Considerations and Identifying Performance Obligations and Licensing , respectively (together, “ASU 2016-08/10”). The amendments in ASU 2016-08/10 state that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The effective date and transition requirements for the amendments in ASU 2016-08/10 update are the same as the effective date and transition requirements in ASU 2015-14. It permits the use of either a retrospective or cumulative effect transition method and early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. We have not yet selected a transition method and are in the process of evaluating the effect this standard will have on our consolidated financial statements and related disclosures. In July 2015, the FASB issued Accounting Standards Update No. 2015-12 (“ASU 2015-12”), Plan Accounting: Defined Benefit Pension Plans (Topic 960), Defined Contribution Pension Plans (Topic 962), Health and Welfare Benefit Plans (Topic 965) . The amendments in Part II: Plan Investment Disclosures of ASU 2015-12 seek to simplify and increase the effectiveness of the required disclosures for investments related to employee benefit plans. The amendments in Part II of ASU 2015-12 will require that investments of employee benefit plans be grouped only by general type, eliminating the need to disaggregate the investments in multiple ways. Part II of ASU 2015-12 is effective for annual periods beginning on or after December 15, 2015, with early application permitted, and should be applied retrospectively for all financial statements presented. We do not anticipate that the adoption of this pronouncement will result in a material impact to our financial position, results of operations or cash flows. In February 2016, the FASB issued Accounting Standards Update No. 2016-02 , Leases (Topic 842) (“ASU 2016-02”). The main amendments in ASU 2016-02 require recognition on the balance sheet of lease assets and lease liabilities by lessees for those leases classified as operating leases. ASU 2016-02 is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years, with early application permitted. We have not yet selected a transition method and are in the process of evaluating the effect this standard will have on our consolidated financial statements and related disclosures. In March 2016, the FASB issued Accounting Standards Update No. 2016-09, Improvements to Employee Share-Based Payment Accounting (“ASU 2016-09”). The amendments in ASU 2016-09 intend to improve the accounting for share-based payment transactions as part of the FASB’s simplification initiative. The areas for simplification in ASU 2016-09 involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods, with early application permitted. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. We have not yet selected a transition method and are in the process of evaluating the effect this standard will have on our consolidated financial statements and related disclosures.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments In April 2014, we entered into three separate interest rate swap agreements (collectively, the "Interest Rate Swap Agreements") with an aggregate notional amount of $200.0 million to mitigate the risk of an increase in the LIBOR interest rate above the 0.75% minimum LIBOR rate in effect on the Term Loan B. The term of the Interest Rate Swap Agreements began in June 2014 and expires in December 2017. Upon execution, we designated and documented the Interest Rate Swap Agreements as cash flow hedges. The Interest Rate Swap Agreements will continue to mitigate risk in connection with the interest rate for the Amended and Restated Term Loan B (as defined in Note 4). By utilizing a derivative instrument to hedge our exposure to LIBOR rate changes, we are exposed to credit risk and market risk. Credit risk is the failure of the counterparty to perform under the terms of the derivative contract. To mitigate this risk, the hedging instrument is placed with counterparties that we believe pose minimal credit risk. Market risk is the adverse effect on the value of a financial instrument that results from a change in interest rates, commodity prices or currency exchange rates. We manage the market risk associated with the Interest Rate Swap Agreements by establishing and monitoring parameters that limit the types and degree of market risk that we may undertake. We hold and issue derivative instruments for risk management purposes only and do not utilize derivatives for trading or speculative purposes. We record derivative instruments at fair value on our unaudited condensed consolidated balance sheets with the effective portion of all cash flow designated derivatives deferred in other comprehensive income and the ineffective portion, if any, recognized immediately in earnings. Our derivatives are measured on a recurring basis using Level 2 inputs. The fair value measurements of our derivatives are based on market prices that generally are observable for similar assets or liabilities at commonly quoted intervals. Derivative assets and derivative liabilities that have maturity dates equal to or less than twelve months from the balance sheet date are included in prepaid and other current assets and other accrued liabilities, respectively. Derivative assets and derivative liabilities that have maturity dates greater than twelve months from the balance sheet date are included in deposits and other assets and other long-term liabilities, respectively. Derivative instruments recorded at fair value in our unaudited and audited condensed consolidated balance sheets as of March 31, 2016 and December 31, 2015 , respectively, consisted of the following: Derivative Liabilities (Amounts in thousands) March 31, 2016 December 31, 2015 Derivatives Designated as Cash Flow Hedges Interest Rate Swap Agreements - Current $ 1,493 $ 1,372 Interest Rate Swap Agreements - Noncurrent 747 226 $ 2,240 $ 1,598 As of March 31, 2016 and December 31, 2015 , we held no derivatives other than derivatives designated as hedging instruments. Effective changes in the fair value of derivatives that are designated as hedges are recorded in accumulated other comprehensive income ("AOCI") on the condensed consolidated balance sheet when in qualifying relationships and are reclassified to interest expense when the forecasted transaction takes place. Ineffective changes, if any, and changes in the fair value of derivatives that are not designated as hedges are recorded directly in interest expense and other (income) expense, net, respectively. Gains and losses before taxes on derivatives designated as cash flow hedges included in our unaudited condensed consolidated statements of operations for the three months ended March 31, 2016 and March 31, 2015 were as follows: Loss Recognized in AOCI (Effective Portion) Loss Reclassified from AOCI into Operations (Effective Portion) Loss Recognized in Operations on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) (Amounts in thousands) 2016 2015 2016 2015 2016 2015 Interest Rate Swap Agreements (1,084 ) (1,565 ) (442 ) (441 ) — — Total $ (1,084 ) $ (1,565 ) $ (442 ) $ (441 ) $ — $ — As of March 31, 2016 , approximately $1.5 million of unrealized losses associated with the Interest Rate Swap Agreements are expected to be reclassified from AOCI to operations during the next twelve months. Transactions and events expected to occur over the next twelve months that will necessitate reclassifying these unrealized losses to operations are the periodic interest payments that are required to be made on the Amended and Restated Term Loan B. For the three months ended March 31, 2016 , no hedge ineffectiveness was recorded for the Interest Rate Swap Agreements.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The fair value of a financial instrument is the amount at which the instrument could be exchanged in a current transaction between willing parties. The following table and accompanying information present the estimated fair values and classifications of our financial instruments in accordance with FASB ASC Topic 820, Fair Value Measurement , as of March 31, 2016 and December 31, 2015 : As of March 31, 2016 December 31, 2015 (Amounts in thousands) Carrying Amount Fair Value Carrying Amount Fair Value Financial assets (liabilities): Restricted-use investment securities $ 3,195 $ 3,195 $ 3,036 $ 3,036 Interest Rate Swap Agreements liabilities (2,240 ) (2,240 ) (1,598 ) (1,598 ) Long-term debt (including current portion) (1,576,525 ) (1,598,789 ) (1,505,528 ) (1,510,304 ) The following methods and assumptions were used to estimate the fair value of each class of financial instruments: • The carrying values of cash and cash equivalents, accounts receivable, notes receivable, accounts payable and accrued liabilities approximate fair value because of the short maturity of these instruments. • Restricted-use investment securities consist of interest bearing bank accounts for which their carrying value approximates their fair value because of their short term maturity. The measurement of restricted-use investment securities is considered a Level 2 fair value measurement. • The measurement of the fair value of derivative assets and liabilities is based on market prices that generally are observable for similar assets and liabilities at commonly quoted intervals and is considered a Level 2 fair value measurement. Derivative assets and liabilities that have maturity dates equal to or less than twelve months from the balance sheet date are included in prepaid and other current assets and other accrued liabilities, respectively. Derivative assets and liabilities that have maturity dates greater than twelve months from the balance sheet date are included in deposits and other assets and other long-term liabilities, respectively. See Note 2 for additional information on our derivative instruments and related Company policies. • The measurement of the fair value of long-term debt is based on market prices that generally are observable for similar liabilities at commonly quoted intervals and is considered a Level 2 fair value measurement.

Long-Term Indebtedness

Long-Term Indebtedness	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Long-Term Indebtedness	Long-Term Indebtedness Credit Facility On December 20, 2011, we entered into a $1,135.0 million credit agreement (the "2011 Credit Facility") with several lenders including Wells Fargo Bank National Association, as administrative agent, and related loan and security documentation agents. The 2011 Credit Facility was comprised of a 5 -year $200.0 million revolving credit loan facility (the "Revolving Loan"), a 5 -year $75.0 million Tranche A Term Loan facility ("Term Loan A") and a 7 -year $860.0 million Tranche B Term Loan facility ("Term Loan B" and together with the Term Loan A, the "Term Loans"). In certain circumstances, the Term Loan B could be increased by $300.0 million . The proceeds from the $935.0 million Term Loans were used, along with $15.0 million of existing cash, to retire the $950.0 million senior term loan from the prior facility. Interest on the 2011 Credit Facility accrued based on pricing rates corresponding with the senior secured leverage ratios of Six Flags Theme Parks Inc. ("SFTP") as set forth in the credit agreement. On December 21, 2012, we entered into an amendment to the 2011 Credit Facility (the "2012 Credit Facility Amendment") that among other things, permitted us to (i) issue $800.0 million of senior unsecured notes (see 2021 Notes below), (ii) use $350.0 million of the proceeds of the senior unsecured notes to repay the $72.2 million that was outstanding under the Term Loan A and $277.8 million of the outstanding balance of the Term Loan B, (iii) use the remaining $450.0 million of proceeds for share repurchases and other corporate matters and (iv) reduce the interest rate payable on the Term Loan B by 25 basis points. On December 23, 2013, we entered into an amendment to the 2011 Credit Facility (the "2013 Credit Facility Amendment") that reduced the overall borrowing rate on the Term Loan B by 50 basis points through (i) a 25 basis point reduction in the applicable margin from 3.00% plus LIBOR to 2.75% plus LIBOR and (ii) a 25 basis point reduction in the minimum LIBOR rate from 1.00% to 0.75% . Additionally, the 2013 Credit Facility Amendment permitted us to use up to $200.0 million of our excess cash on hand, over time, for general corporate purposes, including potential share repurchases. On June 30, 2015, we amended and restated the 2011 Credit Facility (as amended by the 2012 Credit Facility Amendment and the 2013 Credit Facility Amendment, the "Amended and Restated Credit Facility"). The Amended and Restated Credit Facility is comprised of a $250.0 million revolving credit loan facility (the "Amended and Restated Revolving Loan") and a $700.0 million Tranche B Term Loan facility (the "Amended and Restated Term Loan B"). In connection with entering into the Amended and Restated Credit Facility, we repaid the outstanding Term Loan B and we recognized a loss on debt extinguishment of $6.6 million . The remaining proceeds from the Amended and Restated Credit Facility were used for share repurchases and payment of refinancing fees. As of March 31, 2016 , $72.0 million was outstanding under the Amended and Restated Revolving Loan (excluding amounts reserved for letters of credit in the amount of $20.8 million ). As of December 31, 2015 , no advances under the Amended and Restated Revolving Loan were outstanding (excluding amounts reserved for letters of credit in the amount of $20.1 million ). Interest on the Amended and Restated Revolving Loan accrues at an annual rate of LIBOR plus an applicable margin with an unused commitment fee based on our senior secured leverage ratio. As of March 31, 2016 , the Amended and Restated Revolving Loan unused commitment fee was 0.375% . Amounts outstanding under the Amended and Restated Revolving Loan accrue interest at annual rate of 4.50% . The principal amount of the Amended and Restated Revolving Loan is due and payable on June 30, 2020. The Term Loan A was fully repaid in 2012 and the Term Loan B was fully repaid on June 30, 2015. As of March 31, 2016 and December 31, 2015 , $694.8 million and $696.5 million was outstanding under the Amended and Restated Term Loan B, respectively. Interest on the Amended and Restated Term Loan B accrues at an annual rate of LIBOR plus an applicable margin, with a 0.75% LIBOR floor, based on our consolidated leverage ratio. In April 2014, we entered into the Interest Rate Swap Agreements with a notional amount of $200.0 million to mitigate the risk of an increase in the LIBOR interest rate above the 0.75% minimum LIBOR rate in effect on the Term Loan B. The Interest Rate Swap Agreements continue to mitigate an increase in the LIBOR rate in effect on the Amended and Restated Term Loan B. See Note 2 for further discussion. As of March 31, 2016 , the applicable interest rate on the Amended and Restated Term Loan B was 3.50% . The Amended and Restated Term Loan B is payable in equal quarterly installments of $1.8 million . All remaining outstanding principal of the Amended and Restated Term Loan B is due and payable on June 30, 2022. Amounts outstanding under the Amended and Restated Credit Facility are guaranteed by Holdings, Six Flags Operations Inc. ("SFO") and certain of the domestic subsidiaries of SFTP (collectively, the "Loan Parties"). The Amended and Restated Credit Facility is secured by a first priority security interest in substantially all of the assets of the Loan Parties. The Amended and Restated Credit Facility agreement contains certain representations, warranties, affirmative covenants and financial covenants (specifically, (i) a minimum interest coverage covenant and (ii) a maximum senior leverage maintenance covenant). In addition, the Amended and Restated Credit Facility agreement contains restrictive covenants that, subject to certain exceptions, limit or restrict, among other things, the incurrence of indebtedness and liens, fundamental changes, restricted payments, capital expenditures, investments, prepayments of certain indebtedness, transactions with affiliates, changes in fiscal periods, modifications of certain documents, activities of the Company and SFO and hedging agreements, subject, in each case, to certain carve-outs. 2021 Notes On December 21, 2012, Holdings issued $800.0 million of 5.25% senior unsecured notes due January 15, 2021 (the "2021 Notes"). The proceeds from the 2021 Notes were used to repay the $72.2 million that was outstanding under the Term Loan A and to repay $277.8 million of the outstanding balance of the Term Loan B. The remaining proceeds were used for share repurchases. Interest payments of $21.0 million are due semi-annual ly on January 15 and July 15 (except in 2013 when we only made one interest payment of $22.3 million on July 15 and in 2021 when we will only make one payment of $21.0 million on January 15). The 2021 Notes are guaranteed by the Loan Parties. The 2021 Notes contain restrictive covenants that, subject to certain exceptions, limit or restrict, among other things, the ability of the Loan Parties to incur additional indebtedness, create liens, engage in mergers, consolidations and other fundamental changes, make investments, engage in transactions with affiliates, pay dividends and repurchase capital stock. The 2021 Notes contain certain events of default, including payment, breaches of covenants and representations, cross defaults to other material indebtedness, judgment, and changes of control and bankruptcy events of default. HWP Refinance Loan On November 5, 2007, HWP Development LLC ("HWP") entered into a $33.0 million term loan (the "Refinance Loan"). Borrowings under the Refinance Loan bear interest at 6.72% . Monthly payments of principal and interest of $0.2 million are payable through November 1, 2017. On December 1, 2017, all unpaid principal and interest is due and payable. Due to significant early pre-payment penalties under the Refinance Loan, we do not currently intend to pre-pay the Refinance Loan prior to its scheduled maturity. HWP is subject to various covenants under the Refinance Loan that place certain restrictions limiting or prohibiting engaging in certain types of transactions. Pursuant to the Refinance Loan, HWP deposited into escrow $3.2 million and $3.0 million as of March 31, 2016 and December 31, 2015 , respectively, and will make additional monthly deposits to cover annual amounts owed for insurance, taxes and furniture, fixture and equipment purchases. Long-Term Indebtedness Summary As of March 31, 2016 and December 31, 2015 , long-term debt consisted of the following: As of (Amounts in thousands) March 31, 2016 December 31, 2015 Amended and Restated Term Loan B $ 694,750 $ 696,500 2021 Notes 800,000 800,000 HWP Refinance Loan 29,530 29,667 Amended and Restated Revolving Loan 72,000 — Net discount (3,164 ) (3,281 ) Deferred financing costs (16,591 ) (17,358 ) Long-term debt and Short-term borrowings 1,576,525 1,505,528 Less current portion (79,520 ) (7,506 ) Total long-term debt $ 1,497,005 $ 1,498,022

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Changes in the composition of AOCI during the three months ended March 31, 2016 were as follows: (Amounts in thousands) Cumulative Translation Adjustment Cash Flow Hedges Defined Benefit Plans Income Taxes Accumulated Other Comprehensive Income (Loss) Balances at December 31, 2015 $ (24,800 ) $ (1,598 ) $ (49,772 ) $ 9,612 $ (66,558 ) Amounts reclassified from accumulated other comprehensive income (loss) — 442 247 (269 ) 420 Current period other comprehensive (loss) income activity 1,688 (1,084 ) — (171 ) 433 Balances at March 31, 2016 $ (23,112 ) $ (2,240 ) $ (49,525 ) $ 9,172 $ (65,705 ) The Company had the following reclassifications out of accumulated other comprehensive income (loss) during the three months ended March 31, 2016 and March 31, 2015 : Location of Reclassification into Income Amount of Reclassification from AOCI Three Months Ended Component of AOCI March 31, 2016 March 31, 2015 (Amounts in thousands) Amortization of loss on interest rate hedge Interest expense $ 442 $ 441 Income tax expense (172 ) (174 ) Net of tax $ 270 $ 267 Amortization of deferred actuarial loss and prior service cost Operating expenses $ 247 $ — Income tax benefit (97 ) — Net of tax $ 150 $ — Total reclassifications $ 420 $ 267

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Partnership Parks On April 1, 1998, we acquired all of the capital stock of the former Six Flags Entertainment Corporation (a corporation that has been merged out of existence and that has always been a separate corporation from Holdings, "Former SFEC") for $976.0 million , paid in cash. In addition to our obligations under outstanding indebtedness and other securities issued or assumed in the Former SFEC acquisition, we also guaranteed certain contractual obligations relating to the Partnership Parks. Specifically, we guaranteed the obligations of the general partners of those partnerships to (i) make minimum annual distributions (including rent) of approximately $68.3 million in 2016 (subject to cost of living adjustments) to the limited partners in the Partnership Parks (based on our ownership of units as of March 31, 2016 , our share of the distribution will be approximately $29.8 million ) and (ii) make minimum capital expenditures at each of the Partnership Parks during rolling five -year periods, based generally on 6% of the Partnership Parks' revenues. Cash flow from operations at the Partnership Parks is used to satisfy these requirements first, before any funds are required from us. We also guaranteed the obligation of our subsidiaries to annually purchase all outstanding limited partnership units to the extent tendered by the unit holders (the "Partnership Park Put"). The agreed price for units tendered in the Partnership Park Put is based on a valuation of each of the respective Partnership Parks (the "Specified Price") that is the greater of (a) a valuation for each of the respective Partnership Parks derived by multiplying such park's weighted average four year EBITDA (as defined in the agreements that govern the partnerships) by a specified multiple ( 8.0 in the case of SFOG and 8.5 in the case of SFOT) and (b) a valuation derived from the highest prices previously paid for the units of the Partnership Parks by certain entities. Pursuant to the valuation methodologies described in the preceding sentence, the Specified Price for the Partnership Parks, if determined as of March 31, 2016 is $343.0 million in the case of SFOG and $392.5 million in the case of SFOT. As of March 31, 2016 , we owned approximately 31.0% and 53.1% of the Georgia limited partner interests and Texas limited partner interests, respectively. Our obligations with respect to SFOG and SFOT will continue until 2027 and 2028, respectively. In 2027 and 2028, we will have the option to purchase all remaining units in the Georgia limited partner and the Texas limited partner, respectively, at a price based on the Specified Price, increased by a cost of living adjustment. As of the date of this report, no partnership units in the Texas partnership have been tendered for purchase and we expect to purchase 0.115 units from the Georgia partnership for approximately $0.4 million in May 2016 pursuant to the 2016 annual offer. Pursuant to the 2015 annual offer, we did not purchase any units from the Texas partnership and we purchased 0.500 units from the Georgia partnership for approximately $1.6 million in May 2015. As we purchase additional units, we are entitled to a proportionate increase in our share of the minimum annual distributions. The maximum unit purchase obligations for 2016 at both parks will be approximately $420.9 million , representing approximately 69.0% of the outstanding units of SFOG and 46.9% of the outstanding units of SFOT. An additional $350.0 million of the Amended and Restated Term Loan B under the Amended and Restated Credit Facility is available for borrowing for future "put" obligations if necessary. In connection with our acquisition of the Former SFEC, we entered into the Subordinated Indemnity Agreement with certain of the Company's entities, Time Warner and an affiliate of Time Warner, pursuant to which, among other things, we transferred to Time Warner (which has guaranteed all of our obligations under the Partnership Park arrangements) record title to the corporations which own the entities that have purchased and will purchase limited partnership units of the Partnership Parks, and we received an assignment from Time Warner of all cash flow received on such limited partnership units, and we otherwise control such entities. In addition, we issued preferred stock of the managing partner of the partnerships to Time Warner. In the event of a default by us under the Subordinated Indemnity Agreement or of our obligations to our partners in the Partnership Parks, these arrangements would permit Time Warner to take full control of both the entities that own limited partnership units and the managing partner. If we satisfy all such obligations, Time Warner is required to transfer to us the entire equity interests of these entities. We incurred $14.8 million of capital expenditures at these parks during the 2015 season and intend to incur approximately $20.0 million of capital expenditures at these parks for the 2016 season, an amount in excess of the minimum required expenditure. Cash flows from operations at the Partnership Parks will be used to satisfy the annual distribution and capital expenditure requirements, before any funds are required from us. The Partnership Parks generated approximately $79.8 million of cash in 2015 from operating activities after deduction of capital expenditures and excluding the impact of short-term intercompany advances from or payments to Holdings. As of March 31, 2016 and December 31, 2015 , we had total loans receivable outstanding of $239.3 million from the partnerships that own the Partnership Parks, primarily to fund the acquisition of Six Flags White Water Atlanta and to make capital improvements and distributions to the limited partners in prior years. Insurance We maintain insurance of the types and in amounts that we believe are commercially reasonable and that are available to businesses in our industry. We maintain multi-layered general liability policies that provide for excess liability coverage of up to $100.0 million per occurrence. For incidents arising after November 15, 2003 but prior to December 31, 2008, our self-insured retention is $2.5 million per occurrence ( $2.0 million per occurrence for the twelve months ended November 15, 2003 and $1.0 million per occurrence for the twelve months ended November 15, 2002) for our domestic parks and a nominal amount per occurrence for our international parks. For incidents arising after November 1, 2004 but prior to December 31, 2008, we have a one-time additional $0.5 million self-insured retention, in the aggregate, applicable to all claims in the policy year. For incidents arising on or after December 31, 2008, our self-insured retention is $2.0 million , followed by a $0.5 million deductible per occurrence applicable to all claims in the policy year for our domestic parks and our park in Canada and a nominal amount per occurrence for our park in Mexico. Defense costs are in addition to these retentions. Our general liability policies cover the cost of punitive damages only in certain jurisdictions. Based upon reported claims and an estimate for incurred, but not reported claims, we accrue a liability for our self-insured contingencies. For workers' compensation claims arising after November 15, 2003, our deductible is $0.75 million ( $0.5 million deductible for the period from November 15, 2001 to November 15, 2003). We also maintain fire and extended coverage, business interruption, terrorism and other forms of insurance typical to businesses in this industry. The all peril property coverage policies insure our real and personal properties (other than land) against physical damage resulting from a variety of hazards. Additionally, we maintain information security and privacy liability insurance in the amount of $10.0 million with a $0.25 million self-insured retention per event. The majority of our current insurance policies expire on December 31, 2016. We generally renegotiate our insurance policies on an annual basis. We cannot predict the level of the premiums that we may be required to pay for subsequent insurance coverage, the level of any self-insurance retention applicable thereto, the level of aggregate coverage available or the availability of coverage for specific risks. Litigation We are party to various legal actions arising in the normal course of business, including the cases discussed below. Matters that are probable of unfavorable outcome to us and which can be reasonably estimated are accrued. Such accruals are based on information known about the matters, our estimate of the outcomes of such matters and our experience in contesting, litigating and settling similar matters. None of the actions are believed by management to involve amounts that would be material to our consolidated financial position, results of operations or liquidity after consideration of recorded accruals. On January 6, 2009, a civil action against us was commenced in the State Court of Cobb County, Georgia. The plaintiff sought damages for personal injuries, including an alleged brain injury, as a result of an altercation with a group of individuals on property adjacent to SFOG on July 3, 2007. Certain of the individuals were employees of the park, but were off-duty and not acting within the course or scope of their employment with SFOG at the time the altercation occurred. The plaintiff, who had exited the park, claimed that we were negligent in our security of the premises. Four of the individuals who allegedly participated in the altercation were also named as defendants in the litigation. Our motion for summary judgment was denied by the trial court on May 19, 2011. Pursuant to the trial that concluded on November 20, 2013, the jury returned a verdict in favor of the plaintiff for $35.0 million . The jury allocated 92% of the verdict against Six Flags and the judgment was entered on February 11, 2014. A notice of appeal was filed on September 19, 2014, which our insurers are pursuing on Six Flags' and the insurers' behalf, and on October 2, 2014, the plaintiff filed a notice of cross appeal. On November 20, 2015, the Georgia Court of Appeals reversed the jury verdict and remanded for a new trial on both liability and damages. On December 16, 2015, the Georgia Court of Appeals denied the parties’ various motions for reconsideration. A petition for writ of certiorari in the Georgia Supreme Court was filed on behalf of Six Flags on January 19, 2016. The Six Flags petition asks the Georgia Supreme Court to grant further review and rule that Six Flags is entitled to judgment as a matter of law without the need for a new trial. On January 19, 2016, the plaintiff also filed a petition for writ of certiorari asking the Georgia Supreme Court to review the Court of Appeals’ reversal of the jury verdict. We have paid the full amount of our $2.5 million self-insurance retention to our insurers. On June 27, 2012, Wishtoyo Foundation and its Ventura Coastkeeper program, Los Angeles Coastkeeper d/b/a Santa Monica Baykeeper, and Friends of the Santa Clara River, all non-profit corporations, filed a complaint against Holdings, SFTP and Magic Mountain LLC in the United States District Court for the Central District of California seeking declaratory and injunctive relief and civil penalties under, among others, the Federal Water Pollution Control Act (more commonly known as the Clean Water Act). The plaintiffs alleged that Six Flags Magic Mountain discharged water in violation of its water discharge permits into the Santa Clara River. In January 2015, the parties to the lawsuit entered into a consent decree to settle the lawsuit, and on March 26, 2015, the consent decree was approved and entered by the District Court. In connection with settlement of the lawsuit, we intend to install at Six Flags Magic Mountain an on-site infiltration basin to retain, manage and infiltrate stormwater runoff from the park in certain instances. On July 3, 2012, a civil action was commenced against us in the Superior Court of Solano County, California. The plaintiffs sought damages for personal injuries when a guest at Six Flags Discovery Kingdom jumped on a swinging gate arm that entered a passing tram carrying the plaintiffs on July 3, 2010. We have previously expensed the full amount of our $2.5 million self-insurance retention plus estimated litigation costs in connection with this incident. On October 24, 2014, the litigation was dismissed without prejudice, with respect to one of the plaintiffs, a minor, who may reinstate the lawsuit at any time prior to two years following the date such plaintiff reaches the age of majority. In January 2015, an agreement was reached to settle the lawsuit with the remaining plaintiffs. On September 12, 2014, a civil action against us was commenced in the Circuit Court of Cook County, Illinois. The plaintiff sought damages for personal injuries after riding a water slide at Six Flags Great America. In 2015, the venue for the action was transferred to Lake County. Pursuant to the trial that concluded on April 26, 2016, the jury returned a verdict in favor of the plaintiff for $1.5 million . We intend to vigorously challenge the verdict. Tax and Other Contingencies As of March 31, 2016 and December 31, 2015 , we had a nominal amount of accrued liabilities for tax and other indemnification contingencies related to certain parks sold in previous years that could be recognized as recovery of losses in the future if such liabilities are not requested to be paid.

Noncontrolling Interests, Partn

Noncontrolling Interests, Partnerships and Joint Ventures	3 Months Ended
	Mar. 31, 2016
Noncontrolling Interest [Abstract]
Noncontrolling Interests, Partnerships and Joint Ventures	Noncontrolling Interests, Partnerships and Joint Ventures Redeemable Noncontrolling Interests Redeemable noncontrolling interests represent the non-affiliated parties' share of the assets of the Partnership Parks that are less than wholly-owned: SFOT, SFOG and Six Flags White Water Atlanta, which is owned by the partnership that owns SFOG. As of March 31, 2016 and December 31, 2015 , redeemable noncontrolling interests in the Partnership Parks was $435.7 million . See Note 6 for a description of the partnership arrangements applicable to the Partnership Parks, the accounts of which are included in the accompanying unaudited condensed consolidated financial statements. The redemption value of the partnership units as of March 31, 2016 and December 31, 2015 was approximately $420.9 million .

Business Segments

Business Segments	3 Months Ended
	Mar. 31, 2016
Segment Reporting [Abstract]
Business Segments	Business Segments We manage our operations on an individual park location basis, including operations from parks owned, managed and branded. Discrete financial information is maintained for each park and provided to our corporate management for review and as a basis for decision making. The primary performance measures used to allocate resources are Park EBITDA (defined as park-related operating earnings, excluding the impact of interest, taxes, depreciation, amortization and any other non-cash income or expenditures) and Park Free Cash Flow (defined as Park EBITDA less park-related capital expenditures). Primarily all of our parks provide similar products and services through a similar process to the same class of customer through a consistent method. We also believe that the parks share common economic characteristics. Based on these factors, we have only one reportable segment—theme parks. The following table presents segment financial information and a reconciliation of net loss to Park EBITDA. Park level expenses exclude all non-cash operating expenses, principally depreciation and amortization and all non-operating expenses. Three Months Ended (Amounts in thousands) March 31, 2016 March 31, 2015 Net loss $ (46,935 ) $ (70,326 ) Interest expense, net 19,458 18,587 Income tax benefit (23,860 ) (35,629 ) Depreciation and amortization 26,028 26,795 Corporate expenses 14,044 14,412 Stock-based compensation 2,006 22,307 Non-operating park level (income) expense, net: (Gain) loss on disposal of assets (483 ) 666 Other expense (income), net 699 (72 ) Park EBITDA $ (9,043 ) $ (23,260 ) All of our owned or managed parks are located in the United States with the exception of one park in Mexico City, Mexico and one park in Montreal, Canada. We also have revenue and expenses related to the development of Six Flags-branded theme parks outside of North America. The following information reflects our long-lived assets (which consists of property and equipment and intangible assets), revenues and loss before income taxes by domestic and foreign categories as of or for the three months ended March 31, 2016 and March 31, 2015 : Domestic Foreign Total 2016 (Amounts in thousands) Long-lived assets $ 2,118,094 $ 87,925 $ 2,206,019 Revenues 99,355 16,064 115,419 Loss before income taxes (70,326 ) (469 ) (70,795 ) 2015 Long-lived assets $ 2,122,284 $ 88,789 $ 2,211,073 Revenues 69,400 15,755 85,155 Loss before income taxes (104,530 ) (1,425 ) (105,955 )

Pension Benefits

Pension Benefits	3 Months Ended
	Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Pension Benefits	Pension Benefits We froze our pension plan effective March 31, 2006, pursuant to which most participants no longer earned future pension benefits. Effective February 16, 2009, the remaining participants in the pension plan no longer earned future benefits. The following summarizes our pension costs during the three months ended March 31, 2016 and March 31, 2015 : Three Months Ended (Amounts in thousands) March 31, 2016 March 31, 2015 Service cost $ 600 $ 600 Interest cost 2,242 2,300 Expected return on plan assets (3,116 ) (3,355 ) Amortization of net actuarial loss 247 235 Total net periodic benefit $ (27 ) $ (220 ) Weighted-Average Assumptions Used To Determine Net Cost Three Months Ended March 31, 2016 March 31, 2015 Discount rate 4.10 % 3.80 % Rate of compensation increase N/A N/A Expected return on plan assets 7.25 % 7.25 % Employer Contributions During the three months ended March 31, 2016 and March 31, 2015 , we made pension contributions of $1.5 million .

Stock Repurchase Plans

Stock Repurchase Plans	3 Months Ended
	Mar. 31, 2016
Stock Repurchase Plans
Stock Repurchase Plans	Stock Repurchase Plans On November 20, 2013, Holdings announced that its Board of Directors approved a new stock repurchase program that permits Holdings to repurchase up to $500.0 million in shares of Holdings' common stock over a four -year period (the "November 2013 Stock Repurchase Plan"). As of April 22, 2016 , Holdings had repurchased 10,691,000 shares at a cumulative price of approximately $457.3 million and an average price per share of $42.78 under the November 2013 Stock Repurchase Plan, leaving approximately $42.7 million for permitted repurchases. The timing of share repurchases is limited by the covenants in the Amended and Restated Credit Facility and the 2021 Notes. The net proceeds from the Amended and Restated Credit Facility were used primarily for share repurchases. We will continue to evaluate the share repurchase limits per the covenants on an on-going basis to determine our ability to utilize the remaining amount authorized for share repurchases. See Note 4 for further discussion.

General - Basis of Presentati20

General - Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Consolidated U.S. GAAP Presentation	Consolidated U.S. GAAP Presentation Our accounting policies reflect industry practices and conform to U.S. GAAP. The unaudited condensed consolidated financial statements include our accounts and the accounts of our wholly owned subsidiaries. We also consolidate the partnerships that own Six Flags Over Texas ("SFOT") and Six Flags Over Georgia (including Six Flags White Water Atlanta) ("SFOG", and together with SFOT, the "Partnership Parks") as subsidiaries in our unaudited condensed consolidated financial statements, as we have determined that we have the power to direct the activities of those entities that most significantly impact the entities' economic performance and we have the obligation to absorb losses and receive benefits from the entities that can be potentially significant to these entities. The equity interests owned by non-affiliated parties in the Partnership Parks are reflected in the accompanying condensed consolidated balance sheets as redeemable noncontrolling interests. See Note 7 for further discussion.
Income Taxes	Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, including net operating loss and other tax carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in operations in the period that includes the enactment date. We recorded a valuation allowance of $90.3 million and $88.4 million as of March 31, 2016 and December 31, 2015 , respectively, due to uncertainties related to our ability to utilize some of our deferred tax assets, primarily consisting of certain state net operating loss and other tax carryforwards, before they expire. The valuation allowance was based on our estimates of taxable income by jurisdiction in which we operate and the period over which our deferred tax assets were recoverable. Our projected taxable income over the foreseeable future gives us comfort that we will be able to utilize all of our federal net operating loss carryforwards before they expire. In determining the effective tax rate for interim periods, we consider the expected changes in our valuation allowance from current year originating or reversing timing differences between financial accounting and tax purposes and the taxable income or loss expected for the current year. For interim periods, we also account for the tax effect of significant non-recurring items in the period in which they occur as well as changes in the valuation allowance relating to a change in the assessment of the probability of utilization of the deferred income tax assets. Our liability for income taxes is finalized as auditable tax years pass their respective statutes of limitations in the various jurisdictions in which we are subject to tax. However, these jurisdictions may audit prior years for which the statute of limitations is closed for the purpose of making an adjustment to our taxable income in a year for which the statute of limitations has not closed. Accordingly, taxing authorities of these jurisdictions may audit prior years of the group and its predecessors for the purpose of adjusting net operating loss carryforwards to years for which the statute of limitations has not closed. We classify interest and penalties attributable to income taxes as part of income tax expense. As of March 31, 2016 and December 31, 2015 , we had no accrued interest and penalties liability. Because we do not permanently reinvest foreign earnings, United States deferred income taxes have been provided on unremitted foreign earnings to the extent that such foreign earnings are expected to be taxable upon repatriation.
Long-Lived Assets	Long-Lived Assets We review long-lived assets, including finite-lived intangible assets subject to amortization, for impairment upon the occurrence of events or changes in circumstances that would indicate that the carrying value of the asset or group of assets may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the asset or group of assets to the future net cash flows expected to be generated by the asset or group of assets. If such assets are not considered to be fully recoverable, any impairment to be recognized is measured by the amount by which the carrying amount of the asset or group of assets exceeds its respective fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities We account for derivatives and hedging activities in accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 815, Derivatives and Hedging . This accounting guidance establishes accounting and reporting standards for derivative instruments, including certain derivative instruments embedded in other contracts, and for hedging activities. It requires an entity to recognize all derivatives as either assets or liabilities in the condensed consolidated balance sheet and measure those instruments at fair value. If certain conditions are met, a derivative may be specifically designated as a hedge for accounting purposes. The accounting for changes in the fair value of a derivative (e.g., gains and losses) depends on the intended use of the derivative and the resulting designation. We formally document all relationships between hedging instruments and hedged items, as well as our risk-management objective and our strategy for undertaking various hedge transactions. This process includes linking all derivatives that are designated as cash flow hedges to forecasted transactions. We also assess, both at the hedge's inception and on an ongoing basis, whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in cash flows of hedged items. Changes in the fair value of a derivative that is effective and that is designated and qualifies as a cash flow hedge are recorded in other comprehensive income (loss) until operations are affected by the variability in cash flows of the designated hedged item, at which point they are reclassified to interest expense. Changes in the fair value of a derivative that is not designated as a hedge are recorded in other income (expense), net in the unaudited condensed consolidated statements of operations on a current basis. See Note 2 for further discussion.
Earnings (Loss) Per Common Share	Earnings (Loss) Per Common Share Basic earnings (loss) per common share is computed by dividing net income (loss) attributable to Holdings' common stockholders by the weighted average number of common shares outstanding for the period. Diluted earnings (loss) per common share is computed by dividing net income (loss) attributable to Holdings' common stockholders by the weighted average number of common shares outstanding during the period and the effect of all dilutive common stock equivalents using the treasury stock method. In periods for which there is a net loss, diluted loss per common share is equal to basic loss per common share, since the effect of including any common stock equivalents would be antidilutive. We incurred a net loss for the three months ended March 31, 2016 and March 31, 2015 and therefore, diluted shares outstanding equaled basic shares outstanding. The computation of diluted earnings per share excluded the effect of 6,020,000 and 6,465,000 antidilutive stock options for the three months ended March 31, 2016 and March 31, 2015 , respectively.
Stock Benefit Plans	Stock Benefit Plans Pursuant to the Six Flags Entertainment Corporation Long-Term Incentive Plan (the "Long-Term Incentive Plan"), Holdings may grant stock options, stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, deferred stock units, performance and cash-settled awards and dividend equivalents to select employees, officers, directors and consultants of Holdings and its affiliates. In May 2015, our stockholders approved an amendment to the Long-Term Incentive Plan that increased the number of shares available for issuance under the Long-Term Incentive Plan by 5,000,000 shares from 28,133,332 shares to 33,133,332 shares. We recognize the fair value of each grant as compensation expense on a straight-line basis over the vesting period using the graded vesting terms of the respective grant. The fair value of stock option grants is estimated using the Black-Scholes option pricing valuation model. The fair value of stock, restricted stock units and restricted stock awards is the quoted market price of Holdings' stock on the date of grant. During the year ended December 31, 2011, a performance award was established based on our goal to achieve Modified EBITDA of $500 million by 2015 (the "2015 Performance Award"). "Modified EBITDA” is defined as the Company’s consolidated income from continuing operations: excluding the cumulative effect of changes in accounting principles; discontinued operations gains or losses; income tax expense or benefit; restructure costs or recoveries; reorganization items (net); other income or expense; gain or loss on early extinguishment of debt; equity in income or loss of investees; interest expense (net); gain or loss on disposal of assets; gain or loss on the sale of investees; amortization; depreciation; stock-based compensation; and fresh start accounting valuation adjustments. Based on the results of operations for the years ended December 31, 2014 and 2015, the 2015 Performance Award was issued in full, resulting in the issuance of approximately 1,511,100 shares and 1,314,000 shares, plus associated dividend equivalent rights, in February 2015 and 2016, respectively. During the three months ended March 31, 2016 , we recognized a reduction in stock-based compensation expense of $1.6 million as a result of the decline in the closing market price of Holdings' common stock on the date of issuance relative to December 31, 2015. During the three months ended March 31, 2016 and March 31, 2015 , stock-based compensation expense consisted of the following: Three Months Ended (Amounts in thousands) March 31, 2016 March 31, 2015 Long-Term Incentive Plan $ 1,906 $ 22,232 Employee Stock Purchase Plan 100 75 Total Stock-Based Compensation $ 2,006 $ 22,307 As of March 31, 2016 , options to purchase approximately 6,020,000 shares of common stock of Holdings and approximately 14,000 shares of restricted stock or restricted stock units were outstanding under the Long-Term Incentive Plan and approximately 3,367,000 shares were available for future grant.
Revenue Recognition	Revenue Recognition We recognize revenue upon admission into our parks, provision of our services or when products are delivered to our guests. Revenues are presented in the accompanying unaudited condensed consolidated statements of operations net of sales taxes collected from our guests and remitted or payable to government taxing authorities. During 2013, we launched a membership program. In contrast to our season pass and other multi-use offerings that expire at the end of each operating season, the membership program continues on a month-to-month basis after the initial twelve-month membership term and can be canceled any time after the initial term pursuant to the terms of the membership program. Guests enrolled in the membership program can visit our parks an unlimited number of times anytime they are open as long as the guest remains enrolled in the membership program. For season passes, memberships in the initial twelve-month term and other multi-use admissions, we estimate a redemption rate based on historical experience and other factors and assumptions we believe to be customary and reasonable and recognize a pro-rata portion of the revenue as the guest attends our parks. We review the estimated redemption rate regularly and on an ongoing basis and revise it as necessary throughout the year. Amounts received for multi-use admissions in excess of redemptions are recognized in deferred income. For active memberships after the initial twelve-month term, we recognize revenue monthly as payments are received. As of March 31, 2016 , deferred income was primarily comprised of (i) unredeemed season pass and all season dining pass revenue, (ii) pre-sold single-day admissions revenue for the current operating season, (iii) unredeemed portions of the membership program that will primarily be recognized in 2016 and (iv) sponsorship revenue that will primarily be recognized in 2016. We have entered into multiple agreements to assist third parties in the planning, design, development and operation of Six Flags-branded theme parks outside of North America. Pursuant to these agreements, we provide exclusivity, brand licensing and other services to assist in the design, development and project management of Six Flags-branded theme parks, as well as initial and ongoing management services. Each significant deliverable qualifies as a separate unit of accounting. We recognize revenue under these agreements over the relevant service period of each unit of accounting based on its relative selling price, as determined by our best estimate of selling price. Our best estimate of selling price is established consistent with our overall pricing strategy and includes, but is not limited to, consideration of current market conditions, various risk factors and our required return and profit objectives. We review the service period of each unit of accounting on an ongoing basis and revise it as necessary throughout the year. Revisions to the relevant service periods of the units of accounting may result in revisions to revenue in future periods and are recognized in the period in which the change is identified.
Accounts Receivable, Net	Accounts Receivable, Net Accounts receivable are reported at net realizable value and consist primarily of amounts due from guests for the sale of group outings and multi-use admission products, including season passes and the membership program. We are not exposed to a significant concentration of credit risk, however, based on the age of the receivables, our historical experience and other factors and assumptions we believe to be customary and reasonable, we record an allowance for doubtful accounts. As of March 31, 2016 and December 31, 2015 , we have recorded an allowance for doubtful accounts of $5.1 million and $2.4 million , respectively, which is primarily comprised of estimated defaults under our membership plans. To the extent that our membership plans have not been recognized in revenue, the allowance for doubtful accounts recorded against our membership plans is offset with a corresponding reduction in deferred income.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). The amendments in ASU 2014-09 provide for a single, principles-based model for revenue recognition that replaces the existing revenue recognition guidance. In August 2015, the FASB issued Accounting Standards Updated 2015-14, Revenue from Contracts with Customers - Deferral of the Effective Date , to defer the effective date of ASU 2014-09 for one year. Therefore, the new guidance will be effective for annual and interim periods beginning after December 15, 2017 and will replace most existing revenue recognition guidance under U.S. GAAP when it becomes effective. In March and April 2016, the FASB issued Accounting Standards Update No. 2016-08 and No. 2016-10, Revenue from Contracts with Customers (Topic 606) and Principal versus Agent Considerations and Identifying Performance Obligations and Licensing , respectively (together, “ASU 2016-08/10”). The amendments in ASU 2016-08/10 state that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The effective date and transition requirements for the amendments in ASU 2016-08/10 update are the same as the effective date and transition requirements in ASU 2015-14. It permits the use of either a retrospective or cumulative effect transition method and early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. We have not yet selected a transition method and are in the process of evaluating the effect this standard will have on our consolidated financial statements and related disclosures. In July 2015, the FASB issued Accounting Standards Update No. 2015-12 (“ASU 2015-12”), Plan Accounting: Defined Benefit Pension Plans (Topic 960), Defined Contribution Pension Plans (Topic 962), Health and Welfare Benefit Plans (Topic 965) . The amendments in Part II: Plan Investment Disclosures of ASU 2015-12 seek to simplify and increase the effectiveness of the required disclosures for investments related to employee benefit plans. The amendments in Part II of ASU 2015-12 will require that investments of employee benefit plans be grouped only by general type, eliminating the need to disaggregate the investments in multiple ways. Part II of ASU 2015-12 is effective for annual periods beginning on or after December 15, 2015, with early application permitted, and should be applied retrospectively for all financial statements presented. We do not anticipate that the adoption of this pronouncement will result in a material impact to our financial position, results of operations or cash flows. In February 2016, the FASB issued Accounting Standards Update No. 2016-02 , Leases (Topic 842) (“ASU 2016-02”). The main amendments in ASU 2016-02 require recognition on the balance sheet of lease assets and lease liabilities by lessees for those leases classified as operating leases. ASU 2016-02 is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years, with early application permitted. We have not yet selected a transition method and are in the process of evaluating the effect this standard will have on our consolidated financial statements and related disclosures. In March 2016, the FASB issued Accounting Standards Update No. 2016-09, Improvements to Employee Share-Based Payment Accounting (“ASU 2016-09”). The amendments in ASU 2016-09 intend to improve the accounting for share-based payment transactions as part of the FASB’s simplification initiative. The areas for simplification in ASU 2016-09 involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods, with early application permitted. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. We have not yet selected a transition method and are in the process of evaluating the effect this standard will have on our consolidated financial statements and related disclosures.

General - Basis of Presentati21

General - Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan	During the three months ended March 31, 2016 and March 31, 2015 , stock-based compensation expense consisted of the following: Three Months Ended (Amounts in thousands) March 31, 2016 March 31, 2015 Long-Term Incentive Plan $ 1,906 $ 22,232 Employee Stock Purchase Plan 100 75 Total Stock-Based Compensation $ 2,006 $ 22,307

Derivative Financial Instrume22

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	Derivative instruments recorded at fair value in our unaudited and audited condensed consolidated balance sheets as of March 31, 2016 and December 31, 2015 , respectively, consisted of the following: Derivative Liabilities (Amounts in thousands) March 31, 2016 December 31, 2015 Derivatives Designated as Cash Flow Hedges Interest Rate Swap Agreements - Current $ 1,493 $ 1,372 Interest Rate Swap Agreements - Noncurrent 747 226 $ 2,240 $ 1,598
Derivative Instruments, Gain (Loss)	Gains and losses before taxes on derivatives designated as cash flow hedges included in our unaudited condensed consolidated statements of operations for the three months ended March 31, 2016 and March 31, 2015 were as follows: Loss Recognized in AOCI (Effective Portion) Loss Reclassified from AOCI into Operations (Effective Portion) Loss Recognized in Operations on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) (Amounts in thousands) 2016 2015 2016 2015 2016 2015 Interest Rate Swap Agreements (1,084 ) (1,565 ) (442 ) (441 ) — — Total $ (1,084 ) $ (1,565 ) $ (442 ) $ (441 ) $ — $ —

Fair Value of Financial Instr23

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Schedule of estimated fair values of the entity's financial instruments and classification of such instruments	The following table and accompanying information present the estimated fair values and classifications of our financial instruments in accordance with FASB ASC Topic 820, Fair Value Measurement , as of March 31, 2016 and December 31, 2015 : As of March 31, 2016 December 31, 2015 (Amounts in thousands) Carrying Amount Fair Value Carrying Amount Fair Value Financial assets (liabilities): Restricted-use investment securities $ 3,195 $ 3,195 $ 3,036 $ 3,036 Interest Rate Swap Agreements liabilities (2,240 ) (2,240 ) (1,598 ) (1,598 ) Long-term debt (including current portion) (1,576,525 ) (1,598,789 ) (1,505,528 ) (1,510,304 )

Long-Term Indebtedness (Tables)

Long-Term Indebtedness (Tables)	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Schedule of long-term debt	As of March 31, 2016 and December 31, 2015 , long-term debt consisted of the following: As of (Amounts in thousands) March 31, 2016 December 31, 2015 Amended and Restated Term Loan B $ 694,750 $ 696,500 2021 Notes 800,000 800,000 HWP Refinance Loan 29,530 29,667 Amended and Restated Revolving Loan 72,000 — Net discount (3,164 ) (3,281 ) Deferred financing costs (16,591 ) (17,358 ) Long-term debt and Short-term borrowings 1,576,525 1,505,528 Less current portion (79,520 ) (7,506 ) Total long-term debt $ 1,497,005 $ 1,498,022

Accumulated Other Comprehensi25

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of components of AOCI	Changes in the composition of AOCI during the three months ended March 31, 2016 were as follows: (Amounts in thousands) Cumulative Translation Adjustment Cash Flow Hedges Defined Benefit Plans Income Taxes Accumulated Other Comprehensive Income (Loss) Balances at December 31, 2015 $ (24,800 ) $ (1,598 ) $ (49,772 ) $ 9,612 $ (66,558 ) Amounts reclassified from accumulated other comprehensive income (loss) — 442 247 (269 ) 420 Current period other comprehensive (loss) income activity 1,688 (1,084 ) — (171 ) 433 Balances at March 31, 2016 $ (23,112 ) $ (2,240 ) $ (49,525 ) $ 9,172 $ (65,705 )
Schedule of reclassifications out of accumulated other comprehensive income (loss)	The Company had the following reclassifications out of accumulated other comprehensive income (loss) during the three months ended March 31, 2016 and March 31, 2015 : Location of Reclassification into Income Amount of Reclassification from AOCI Three Months Ended Component of AOCI March 31, 2016 March 31, 2015 (Amounts in thousands) Amortization of loss on interest rate hedge Interest expense $ 442 $ 441 Income tax expense (172 ) (174 ) Net of tax $ 270 $ 267 Amortization of deferred actuarial loss and prior service cost Operating expenses $ 247 $ — Income tax benefit (97 ) — Net of tax $ 150 $ — Total reclassifications $ 420 $ 267

Business Segments (Tables)

Business Segments (Tables)	3 Months Ended
	Mar. 31, 2016
Segment Reconciliation [Abstract]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	The following table presents segment financial information and a reconciliation of net loss to Park EBITDA. Park level expenses exclude all non-cash operating expenses, principally depreciation and amortization and all non-operating expenses. Three Months Ended (Amounts in thousands) March 31, 2016 March 31, 2015 Net loss $ (46,935 ) $ (70,326 ) Interest expense, net 19,458 18,587 Income tax benefit (23,860 ) (35,629 ) Depreciation and amortization 26,028 26,795 Corporate expenses 14,044 14,412 Stock-based compensation 2,006 22,307 Non-operating park level (income) expense, net: (Gain) loss on disposal of assets (483 ) 666 Other expense (income), net 699 (72 ) Park EBITDA $ (9,043 ) $ (23,260 )
Segments, Geographical Areas [Abstract]
Schedule of information reflecting long-lived assets, revenues and income before income taxes by domestic and foreign categories	The following information reflects our long-lived assets (which consists of property and equipment and intangible assets), revenues and loss before income taxes by domestic and foreign categories as of or for the three months ended March 31, 2016 and March 31, 2015 : Domestic Foreign Total 2016 (Amounts in thousands) Long-lived assets $ 2,118,094 $ 87,925 $ 2,206,019 Revenues 99,355 16,064 115,419 Loss before income taxes (70,326 ) (469 ) (70,795 ) 2015 Long-lived assets $ 2,122,284 $ 88,789 $ 2,211,073 Revenues 69,400 15,755 85,155 Loss before income taxes (104,530 ) (1,425 ) (105,955 )

Pension Benefits (Tables)

Pension Benefits (Tables)	3 Months Ended
	Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Summary of pension costs	The following summarizes our pension costs during the three months ended March 31, 2016 and March 31, 2015 : Three Months Ended (Amounts in thousands) March 31, 2016 March 31, 2015 Service cost $ 600 $ 600 Interest cost 2,242 2,300 Expected return on plan assets (3,116 ) (3,355 ) Amortization of net actuarial loss 247 235 Total net periodic benefit $ (27 ) $ (220 )
Schedule of weighted average assumptions used to determine net cost	Weighted-Average Assumptions Used To Determine Net Cost Three Months Ended March 31, 2016 March 31, 2015 Discount rate 4.10 % 3.80 % Rate of compensation increase N/A N/A Expected return on plan assets 7.25 % 7.25 %

General - Basis of Presentati28

General - Basis of Presentation (Details) $ / shares in Units, shares in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)park$ / sharesshares	Mar. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2015USD ($)
Organization, Consolidation and Presentation of Financial Statements
Number of parks owned or operated | park	18
Income Taxes
Valuation allowance | $	$ 90,300,000		$ 88,400,000
Accrued interest and penalties, income taxes | $	0		0
Earnings Per Share, Basic and Diluted [Abstract]
Net loss | $	$ (46,935,000)	$ (70,326,000)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average number of common shares outstanding - basic and diluted: | shares	92,359	93,855
Earnings per share — basic (usd per share) | $ / shares	$ (0.51)	$ (0.75)
Antidilutive stock options excluded from computation of diluted shares outstanding (in shares) | shares	6,020	6,465
Accounts Receivable, Net
Allowance for doubtful accounts | $	$ 5,100,000		$ 2,400,000
United States
Organization, Consolidation and Presentation of Financial Statements
Number of parks owned or operated | park	16
Mexico
Organization, Consolidation and Presentation of Financial Statements
Number of parks owned or operated | park	1
Canada
Organization, Consolidation and Presentation of Financial Statements
Number of parks owned or operated | park	1

General - Basis of Presentati29

General - Basis of Presentation (Details 2) - USD ($)	1 Months Ended	3 Months Ended		12 Months Ended
	May. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2011	May. 06, 2015	May. 02, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based Compensation Expense		$ 2,006,000	$ 22,307,000
Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Award, Number of Additional Shares Authorized	5,000,000
Share-based Payment Award, Number of Shares Authorized					33,133,332	28,133,332
Stock-based Compensation Expense		$ 1,906,000	22,232,000
Share-based Payment Award, Options, Outstanding, Number		6,020,000
Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number		14,000
Share-based Payment Award, Number of Shares Available for Grant		3,367,000
Long Term Incentive Plan [Member] | Performance Award 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Payment Award, Other than Options, Modified EBITDA Performance Target				$ 500,000,000
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based Compensation Expense		$ 100,000	$ 75,000

Derivative Financial Instrume30

Derivative Financial Instruments (Details) - USD ($)	Dec. 23, 2013	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Apr. 30, 2014
Derivative Liability [Abstract]
Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net		$ 0		$ 0
Gain (Loss) Recognized in AOCI (Effective Portion)		(1,084,000)	$ (1,565,000)
Loss Reclassified from AOCI into Operations (Effective Portion)		(442,000)	(441,000)
Loss Recognized in Operations on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)		0	0
Net deferred losses on derivative instruments expected to be reclassified to operations during the next twelve months		1,500,000
Interest Rate Swap [Member]
Derivatives
Derivative, Notional Amount					$ 200,000,000
Derivative Liability [Abstract]
Gain (Loss) Recognized in AOCI (Effective Portion)		(1,084,000)	(1,565,000)
Loss Reclassified from AOCI into Operations (Effective Portion)		(442,000)	(441,000)
Loss Recognized in Operations on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)		0	$ 0
Credit Facility 2011 - Term Loan B, As Amended 2013 [Member]
Derivatives
Debt Instrument, Description of Variable Rate Basis	LIBOR
Debt Instrument, Variable Rate Basis Floor	0.75%
Credit Facility 2011 - Term Loan B, As Amended 2013 [Member] | Interest Rate Swap [Member]
Derivatives
Derivative, Notional Amount					$ 200,000,000
Debt Instrument, Variable Rate Basis Floor	0.75%
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative Liability [Abstract]
Derivative Liability, Current		1,493,000		1,372,000
Derivative Liability, Noncurrent		747,000		226,000
Derivative Liability		$ 2,240,000		$ 1,598,000

Fair Value of Financial Instr31

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair value measurements and disclosures
Restricted-use investment securities	$ 3,195	$ 3,036
Long-term debt (including current portion)	(1,576,525)	(1,505,528)
Reported Value Measurement [Member]
Fair value measurements and disclosures
Restricted-use investment securities	3,195	3,036
Derivative Liability	(2,240)	(1,598)
Long-term debt (including current portion)	(1,576,525)	(1,505,528)
Estimate of Fair Value Measurement [Member]
Fair value measurements and disclosures
Restricted-use investment securities	3,195	3,036
Derivative Liability	(2,240)	(1,598)
Long-term debt (including current portion)	$ (1,598,789)	$ (1,510,304)

Long-Term Indebtedness (Details

Long-Term Indebtedness (Details) - USD ($)

Jan. 15, 2021

Sep. 30, 2015

Dec. 23, 2013

Jul. 15, 2013

Dec. 21, 2012

Dec. 20, 2011

Nov. 05, 2007

Mar. 31, 2016

Mar. 31, 2015

Jun. 30, 2015

Dec. 31, 2015

Apr. 30, 2014

Summary of Long-term debt

Existing Cash Used To Retire Long-Term Debt

$ 15,000,000

Loss on debt extinguishment

$ (6,557,000)

Interest Rate Swap [Member]

Summary of Long-term debt

Derivative, Notional Amount

$ 200,000,000

Credit Facility Amendment 2013 [Member]

Summary of Long-term debt

Excess Cash Available for General Corporate Purposes

$ 200,000,000

Credit Facility 2011 [Member]

Summary of Long-term debt

Debt Instrument, Face Amount

$ 1,135,000,000

Credit Facility 2011 - Revolving Loan [Member]

Summary of Long-term debt

Debt Instrument, Term

5 years

Line of Credit Facility, Maximum Borrowing Capacity

$ 200,000,000

Long-term Line of Credit

$ 0

Letters of Credit Outstanding, Amount

$ 20,100,000

Line of Credit Facility, Unused Capacity, Commitment Fee Percentage

0.375%

Credit Facility 2011 - Term Loans [Member]

Summary of Long-term debt

Proceeds from Issuance of Debt Utilized for Extinguishment of Existing Debt Instruments

935,000,000

Credit Facility 2011 - Term Loan A [Member]

Summary of Long-term debt

Debt Instrument, Face Amount

$ 75,000,000

Debt Instrument, Term

5 years

Extinguishment of Debt, Amount

$ 72,200,000

Credit Facility 2011 - Term Loan B [Member]

Summary of Long-term debt

Debt Instrument, Face Amount

$ 860,000,000

Debt Instrument, Term

7 years

Line of Credit Facility, Additional Contingent Borrowing Capacity

$ 300,000,000

Extinguishment of Debt, Amount

$ 277,800,000

Debt Instrument, Basis Spread on Variable Rate

3.00%

Debt Instrument, Description of Variable Rate Basis

LIBOR

Interest rate, variable interest rate floor (as a percent)

1.00%

Debt Instrument, Interest Rate, Effective Percentage

3.50%

Credit Facility 2011 - Term Loan B [Member] | Credit Facility Amendment 2012 [Member]

Summary of Long-term debt

Debt Amendment, Interest Rate Reduction

0.25%

Credit Facility 2011 - Term Loan B [Member] | Credit Facility Amendment 2013 [Member]

Summary of Long-term debt

Debt Amendment, Interest Rate Reduction

0.50%

Credit Facility 2011 - Term Loan B [Member] | Credit Facility Amendment 2013 [Member] | Variable Rate Basis Spread [Member]

Summary of Long-term debt

Debt Amendment, Interest Rate Reduction

0.25%

Credit Facility 2011 - Term Loan B [Member] | Credit Facility Amendment 2013 [Member] | LIBOR Floor [Member]

Summary of Long-term debt

Debt Amendment, Interest Rate Reduction

0.25%

Credit Facility 2011 - Term Loan B, As Amended 2013 [Member]

Summary of Long-term debt

Debt Instrument, Basis Spread on Variable Rate

2.75%

Debt Instrument, Description of Variable Rate Basis

LIBOR

Interest rate, variable interest rate floor (as a percent)

0.75%

Credit Facility 2011 - Term Loan B, As Amended 2013 [Member] | Interest Rate Swap [Member]

Summary of Long-term debt

Interest rate, variable interest rate floor (as a percent)

0.75%

Derivative, Notional Amount

$ 200,000,000

Amended and Restated Revolving Loan [Member]

Summary of Long-term debt

Line of Credit Facility, Maximum Borrowing Capacity

$ 250,000,000

Debt Instrument, Description of Variable Rate Basis

LIBOR

Long-term Line of Credit

72,000,000

Letters of Credit Outstanding, Amount

$ 20,800,000

Debt Instrument, Frequency of Periodic Payment

annual

Line of Credit Facility, Unused Capacity, Commitment Fee Percentage

0.375%

Debt Instrument, Interest Rate, Effective Percentage

4.50%

Amended and Restated Term Loan B [Member]

Summary of Long-term debt

Debt Instrument, Face Amount

$ 700,000,000

Line of Credit Facility, Additional Contingent Borrowing Capacity

350,000,000

Debt Instrument, Description of Variable Rate Basis

LIBOR

Interest rate, variable interest rate floor (as a percent)

0.75%

Debt Instrument, Frequency of Periodic Payment

annual

Long-term Debt, Gross

$ 694,750,000

$ 696,500,000

Debt Instrument, Interest Rate, Effective Percentage

3.50%

Debt Instrument, Periodic Payment

$ 1,800,000

Senior Unsecured 2021 Notes [Member]

Summary of Long-term debt

Debt Instrument, Face Amount

$ 800,000,000

Proceeds from Issuance of Debt Utilized for Extinguishment of Existing Debt Instruments

350,000,000

Proceeds from Issuance of Debt Utilized for Share Repurchases and Other Corporate Matters

$ 450,000,000

Debt Instrument, Frequency of Periodic Payment

semi-annual

Long-term Debt, Gross

800,000,000

800,000,000

Debt Instrument, Interest Rate, Stated Percentage

5.25%

Periodic payment of interest

$ 22,300,000

$ 21,000,000

Senior Unsecured 2021 Notes [Member] | Scenario, Forecast [Member]

Summary of Long-term debt

Periodic payment of interest

$ 21,000,000

HWP Refinance Loan [Member]

Summary of Long-term debt

Debt Instrument, Face Amount

$ 33,000,000

Debt Instrument, Frequency of Periodic Payment

Monthly

Long-term Debt, Gross

29,530,000

29,667,000

Debt Instrument, Periodic Payment

$ 200,000

Debt Instrument, Interest Rate, Stated Percentage

6.72%

Amounts Deposited Into Escrow

$ 3,200,000

$ 3,000,000

Old Debt - First Lien Amendment [Member]

Summary of Long-term debt

Extinguishment of Debt, Amount

$ 950,000,000

Long-Term Indebtedness (Detai33

Long-Term Indebtedness (Details 2) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Summary of Long-term debt
Net discount	$ (3,164)	$ (3,281)
Deferred Finance Costs, Noncurrent, Net	(5,087)	(5,386)
Long-term debt	1,576,525	1,505,528
Less current portion	(79,520)	(7,506)
Total long-term debt	1,497,005	1,498,022
Amended and Restated Term Loan B [Member]
Summary of Long-term debt
Long-term debt	694,750	696,500
Senior Unsecured 2021 Notes [Member]
Summary of Long-term debt
Long-term debt	800,000	800,000
HWP Refinance Loan [Member]
Summary of Long-term debt
Long-term debt	29,530	29,667
Amended and Restated Term Loan B and Senior Unsecured 2021 Notes [Member]
Summary of Long-term debt
Deferred Finance Costs, Noncurrent, Net	$ (16,591)	$ (17,358)

Accumulated Other Comprehensi34

Accumulated Other Comprehensive Income (Loss) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Accumulated other comprehensive loss, tax
Accumulated other comprehensive loss at the beginning of the period	$ 9,612
Amounts reclassified from accumulated other comprehensive income (loss)	(269)
Current-period other comprehensive income (loss) activity	(171)
Accumulated other comprehensive loss at the end of the period	9,172
Accumulated other comprehensive loss, net of tax
Accumulated other comprehensive loss at the beginning of the period	(66,558)
Amounts reclassified from accumulated other comprehensive income (loss)	420
Current-period other comprehensive income (loss) activity	433
Accumulated other comprehensive loss at the end of the period	(65,705)
Cumulative Translation Adjustment [Member]
Accumulated other comprehensive loss, before tax
Accumulated other comprehensive loss at the beginning of the period	(24,800)
Amounts reclassified from accumulated other comprehensive income (loss)	0
Current-period other comprehensive income (loss) activity	1,688
Accumulated other comprehensive loss at the end of the period	(23,112)
Cash Flow Hedges [Member]
Accumulated other comprehensive loss, before tax
Accumulated other comprehensive loss at the beginning of the period	(1,598)
Amounts reclassified from accumulated other comprehensive income (loss)	442
Current-period other comprehensive income (loss) activity	(1,084)
Accumulated other comprehensive loss at the end of the period	(2,240)
Defined Benefit Plans [Member]
Accumulated other comprehensive loss, before tax
Accumulated other comprehensive loss at the beginning of the period	(49,772)
Amounts reclassified from accumulated other comprehensive income (loss)	247
Current-period other comprehensive income (loss) activity	0
Accumulated other comprehensive loss at the end of the period	$ (49,525)

Accumulated Other Comprehensi35

Accumulated Other Comprehensive Income (Loss) (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassifications out of accumulated other comprehensive income (loss):
Interest expense	$ 19,601	$ 18,712
Income tax benefit	23,860	35,629
Total reclassifications	420
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassifications out of accumulated other comprehensive income (loss):
Total reclassifications	(420)	(267)
Amortization of loss on interest rate hedge [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassifications out of accumulated other comprehensive income (loss):
Interest expense	442	441
Income tax benefit	172	174
Total reclassifications	(270)	(267)
Amortization of deferred actuarial loss and prior service cost [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassifications out of accumulated other comprehensive income (loss):
Operating Expenses	247	0
Income tax benefit	97	0
Total reclassifications	$ (150)	$ 0

Commitments and Contingencies (

Commitments and Contingencies (Details)	Apr. 01, 1998USD ($)	May. 31, 2016USD ($)shares	May. 31, 2015USD ($)shares	Mar. 31, 2016USD ($)multiplier	Mar. 31, 2015USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Details of commitments and contingencies
Acquisition of capital stock of the former Six Flags Entertainment Corporation, paid in cash	$ 976,000,000
Temporary Equity, Redemption Value				$ 420,900,000
Payments to Acquire Property, Plant, and Equipment				42,885,000	$ 34,032,000
Total loans receivable from the partnerships that own partnership parks				$ 239,300,000			$ 239,300,000
Six Flags over Georgia [Member]
Details of commitments and contingencies
Specified multiple for purchase price valuation (in multipliers) | multiplier				8
Specified price for purchase of partnership parks				$ 343,000,000
Limited partner interests owned (as a percent)				31.00%
Units purchased in partnership parks (in shares) | shares			0.5
Units purchased pursuant to annual offer			$ 1,600,000
Remaining redeemable units (as a percent)				69.00%
Six Flags over Georgia [Member] | Scenario, Forecast [Member]
Details of commitments and contingencies
Units purchased in partnership parks (in shares) | shares		0.115
Units purchased pursuant to annual offer		$ 400,000
Six Flags over Texas [Member]
Details of commitments and contingencies
Specified multiple for purchase price valuation (in multipliers) | multiplier				8.5
Specified price for purchase of partnership parks				$ 392,500,000
Limited partner interests owned (as a percent)				53.10%
Remaining redeemable units (as a percent)				46.90%
Six Flags over Texas and Georgia [Member]
Details of commitments and contingencies
Rolling period for making minimum capital expenditure at each of the Partnership Parks				5 years
Percentage of capital expenditures to Partnership Parks' revenues				6.00%
Weighted average period of the park's EBITDA for calculation of value of purchase price				4 years
Payments to Acquire Property, Plant, and Equipment							14,800,000
Cash generated from operating activities by partnerships, after deduction of capital expenditures and excluding the impact of short-term intercompany advances							$ 79,800,000
Six Flags over Texas and Georgia [Member] | Scenario, Forecast [Member]
Details of commitments and contingencies
Annual distributions by general partners to limited partners in partnership parks						$ 68,300,000
Share of Partnership Parks' annual distributions paid to Six Flags Entertainment Corporation						29,800,000
Payments to Acquire Property, Plant, and Equipment						$ 20,000,000
Amended and Restated Term Loan B [Member]
Details of commitments and contingencies
Line of Credit Facility, Additional Contingent Borrowing Capacity				$ 350,000,000

Commitments and Contingencies37

Commitments and Contingencies (Details 2)	Apr. 26, 2016USD ($)	Nov. 20, 2013USD ($)	Mar. 31, 2016USD ($)claimindividual
Litigation
Number of actions that would be material to consolidated financial position | claim			0
Multi-layered general liability policies
Insurance
Excess liability coverage per occurrence			$ 100,000,000
Self-insured retention per occurrence			2,000,000
Deductible per occurrence applicable to all claims in the policy year			500,000
Multi-layered general liability policies | November 16, 2003 - December 30, 2008 [Member]
Insurance
Self-insured retention per occurrence			2,500,000
Multi-layered general liability policies | November 16, 2002 - November 15, 2003 [Member]
Insurance
Self-insured retention per occurrence			2,000,000
Multi-layered general liability policies | November 16, 2001 - November 15, 2002 [Member]
Insurance
Self-insured retention per occurrence			1,000,000
Multi-layered general liability policies | November 2, 2004 - December 30, 2008 [Member]
Insurance
Insurance, Additional Self Insured Retention Value			500,000
Workers' compensation claims
Insurance
Deductible per occurrence applicable to all claims in the policy year			750,000
Workers' compensation claims | November 16, 2001 - November 15, 2003 [Member]
Insurance
Deductible per occurrence applicable to all claims in the policy year			500,000
Information security and privacy liability insurance policy
Insurance
Self-insured retention per occurrence			250,000
Insurance value maintained			$ 10,000,000
Personal Injury Due to SFOG Altercation [Member]
Litigation
Numbers of individuals who allegedly participated in the altercation | individual			4
Loss Contingency, Damages Awarded, Value		$ 35,000,000
Loss Contingency, Damages Awarded, Percentage Allocated		92.00%
Self insurance reserve			$ 2,500,000
Personal Injury Due to SFDK Accident [Member]
Litigation
Self insurance reserve			$ 2,500,000
Subsequent Event [Member] | Personal Injury Due to Six Flags Great America Accident [Member]
Litigation
Loss Contingency, Damages Awarded, Value	$ 1,500,000

Noncontrolling Interests, Par38

Noncontrolling Interests, Partnerships and Joint Ventures (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Noncontrolling Interest [Abstract]
Redeemable noncontrolling interests	$ 435,721	$ 435,721
Temporary Equity, Redemption Value	$ 420,900

Business Segments (Details)

Business Segments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)segment	Mar. 31, 2015USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	1
Net loss	$ (46,935)	$ (70,326)
Interest expense, net	19,458	18,587
Income tax benefit	(23,860)	(35,629)
Depreciation and amortization	26,028	26,795
Corporate expenses	14,044	14,412
Stock-based Compensation Expense	2,006	22,307
(Gain) loss on disposal of assets	(483)	666
Other expense (income), net	699	(72)
Park EBITDA	$ (9,043)	$ (23,260)

Business Segments (Details 2)

Business Segments (Details 2) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)park	Mar. 31, 2015USD ($)
Business segment information by geographical areas
Number of parks owned or operated | park	18
Long-lived assets	$ 2,206,019	$ 2,211,073
Revenues	115,419	85,155
Income (Loss) from Continuing Operations before Income Taxes Minority Interest	(70,795)	(105,955)
Domestic [Member]
Business segment information by geographical areas
Long-lived assets	2,118,094	2,122,284
Revenues	99,355	69,400
Income (Loss) from Continuing Operations before Income Taxes Minority Interest	(70,326)	(104,530)
Foreign [Member]
Business segment information by geographical areas
Long-lived assets	87,925	88,789
Revenues	16,064	15,755
Income (Loss) from Continuing Operations before Income Taxes Minority Interest	$ (469)	$ (1,425)
Mexico
Business segment information by geographical areas
Number of parks owned or operated | park	1
Canada
Business segment information by geographical areas
Number of parks owned or operated | park	1

Pension Benefits (Details)

Pension Benefits (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net periodic benefit cost:
Service cost	$ 600,000	$ 600,000
Interest cost	2,242,000	2,300,000
Expected return on plan assets	(3,116,000)	(3,355,000)
Amortization of net actuarial loss	247,000	235,000
Total net periodic benefit	$ (27,000)	$ (220,000)
Weighted average assumptions used to determine net cost
Discount rate	4.10%	3.80%
Expected return on plan assets	7.25%	7.25%
Employer contributions	$ 1,500,000	$ 1,500,000

Stock Repurchase Plans (Details

Stock Repurchase Plans (Details) - USD ($) $ / shares in Units, shares in Thousands	Nov. 20, 2013	Mar. 31, 2016	Mar. 31, 2015	Apr. 22, 2016
Schedule of Stock Repurchase Plans [Line Items]
Value of shares repurchased		$ 11,308,000	$ 8,479,000
November 2013 Stock Repurchase Plan [Member]
Schedule of Stock Repurchase Plans [Line Items]
Amount of shares authorized to be repurchased under Stock Repurchase Program	$ 500,000,000
Stock Repurchase Program, Period in Force	4 years
November 2013 Stock Repurchase Plan [Member] | Subsequent Event [Member]
Schedule of Stock Repurchase Plans [Line Items]
Total number of shares purchased				10,691
Value of shares repurchased				$ 457,300,000
Average price paid per share (in dollars per share)				$ 42.78
Permitted dollar value of repurchases remaining				$ 42,700,000