Party City Holdco (PRTYQ) 10-Q 8 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 25, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Trading Symbol	PRTY
Entity Registrant Name	Party City Holdco Inc.
Entity Central Index Key	1,592,058
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		97,177,192

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 48,097	$ 54,291
Accounts receivable, net	171,428	140,980
Inventories, net	810,782	604,066
Prepaid expenses and other current assets	95,162	77,816
Total current assets	1,125,469	877,153
Property, plant and equipment, net	319,220	301,141
Goodwill	1,661,837	1,619,253
Trade names	568,326	568,681
Other intangible assets, net	60,064	75,704
Other assets, net	12,465	12,824
Total assets	3,747,381	3,454,756
Current liabilities:
Loans and notes payable	415,419	286,291
Accounts payable	233,252	160,994
Accrued expenses	201,509	176,609
Income taxes payable		45,568
Current portion of long-term obligations	13,231	13,059
Total current liabilities	863,411	682,521
Long-term obligations, excluding current portion	1,622,969	1,532,090
Deferred income tax liabilities, net	171,134	175,836
Deferred rent and other long-term liabilities	91,554	91,929
Total liabilities	2,749,068	2,482,376
Redeemable securities	3,298	3,590
Commitments and contingencies
Stockholders' equity:
Common stock (97,147,907 and 96,380,102 shares outstanding and 120,527,474 and 119,759,669 shares issued at September 30, 2018 and December 31, 2017, respectively)	1,205	1,198
Additional paid-in capital	922,197	917,192
Retained earnings	397,452	372,596
Accumulated other comprehensive loss	(39,353)	(35,818)
Total Party City Holdco Inc. stockholders' equity before common stock held in treasury	1,281,501	1,255,168
Less: Common stock held in treasury, at cost (23,379,567 shares at September 30, 2018 and December 31, 2017)	(286,733)	(286,733)
Total Party City Holdco Inc. stockholders' equity	994,768	968,435
Noncontrolling interests	247	355
Total stockholders' equity	995,015	968,790
Total liabilities, redeemable securities and stockholders' equity	$ 3,747,381	$ 3,454,756

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - shares	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Common stock, shares outstanding	97,147,907	96,380,102
Common stock, shares issued	120,527,474	119,759,669
Treasury stock, shares	23,379,567	23,379,567

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Total revenues	$ 553,046	$ 560,109	$ 1,621,881	$ 1,581,986
Expenses:
Cost of sales	349,641	357,523	996,084	978,142
Wholesale selling expenses	17,538	16,274	53,581	47,946
Retail operating expenses	103,833	100,739	285,019	281,981
Franchise expenses	862	3,636	8,624	10,666
General and administrative expenses	42,239	37,971	136,230	125,763
Art and development costs	5,573	5,898	17,278	17,638
Development stage expenses	1,622	680	5,620	7,092
Total expenses	521,308	522,721	1,502,436	1,469,228
Income from operations	31,738	37,388	119,445	112,758
Interest expense, net	27,705	23,228	76,481	65,214
Other expense, net	5,696	593	9,076	860
(Loss) income before income taxes	(1,663)	13,567	33,888	46,684
Income tax expense	777	3,483	9,443	16,301
Net (loss) income	(2,440)	10,084	24,445	30,383
Add: Net loss attributable to redeemable securities holder	(8)		402
Less: Net loss attributable to noncontrolling interests	(28)		(87)
Net (loss) income attributable to common shareholders of Party City Holdco Inc.	$ (2,420)	$ 10,084	$ 24,934	$ 30,383
Net (loss) income per share attributable to common shareholders of Party City Holdco Inc. - Basic	$ (0.03)	$ 0.08	$ 0.26	$ 0.25
Net (loss) income per share attributable to common shareholders of Party City Holdco Inc. - Diluted	$ (0.03)	$ 0.08	$ 0.26	$ 0.25
Weighted-average number of common shares-Basic	96,494,565	119,587,339	96,449,011	119,546,451
Weighted-average number of common shares-Diluted	96,494,565	120,912,849	97,684,290	120,907,979
Dividends declared per share	$ 0	$ 0	$ 0	$ 0
Comprehensive (loss) income	$ (2,003)	$ 15,329	$ 20,889	$ 45,839
Add: Comprehensive loss attributable to redeemable securities holder	(8)		402
Less: Comprehensive loss attributable to noncontrolling interests	(35)		(108)
Comprehensive (loss) income attributable to common shareholders of Party City Holdco Inc.	(1,976)	15,329	21,399	45,839
Net Sales [Member]
Revenues:
Revenues	550,840	557,350	1,614,049	1,572,966
Royalties and Franchise Fees [Member]
Revenues:
Revenues	$ 2,206	$ 2,759	$ 7,832	$ 9,020

Condensed Consolidated Statem_2

Condensed Consolidated Statement of Stockholders' Equity - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Total Party City Holdco Inc. Stockholders' Equity Before Common Stock Held In Treasury [Member]	Common Stock Held In Treasury [Member]	Total Party City Holdco Inc. Stockholders' Equity [Member]	Non-Controlling Interests [Member]
Balance at Dec. 31, 2017	$ 968,790	$ 1,198	$ 917,192	$ 372,596	$ (35,818)	$ 1,255,168	$ (286,733)	$ 968,435	$ 355
Cumulative effect of change in accounting principle, net (see Note 2)	(78)			(78)		(78)		(78)
Balance, as adjusted at Dec. 31, 2017	968,712	1,198	917,192	372,518	(35,818)	1,255,090	(286,733)	968,357	355
Net income	24,445			24,532		24,532		24,532	(87)
Net income attributable to redeemable securities holder	402			402		402		402
Stock option expense	1,492		1,492			1,492		1,492
Restricted stock units - time-based	722	1	721			722		722
Restricted stock units - performance-based	1,482	5	1,477			1,482		1,482
Director - non-cash compensation	196		196			196		196
Warrant expense	242		242			242		242
Exercise of stock options	878	1	877			878		878
Foreign currency adjustments	(4,909)				(4,888)	(4,888)		(4,888)	(21)
Impact of foreign exchange contracts, net	1,353				1,353	1,353		1,353
Balance at Sep. 30, 2018	$ 995,015	$ 1,205	$ 922,197	$ 397,452	$ (39,353)	$ 1,281,501	$ (286,733)	$ 994,768	$ 247

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows (used in) provided by operating activities:
Net income	$ 24,445	$ 30,383
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization expense	57,786	62,519
Amortization of deferred financing costs and original issuance discounts	9,834	3,699
Provision for doubtful accounts	726	432
Deferred income tax expense	1,075	3,221
Deferred rent	3,623	5,634
Undistributed income in unconsolidated joint ventures	(580)	(92)
Loss on disposal of assets	23	533
Non-employee equity based compensation	352	3,286
Stock option expense	1,492	3,852
Restricted stock units - time-based	722
Restricted stock units - performance-based	1,482
Director - non-cash compensation	196
Changes in operating assets and liabilities, net of effects of acquired businesses:
Increase in accounts receivable	(32,802)	(25,370)
Increase in inventories	(194,419)	(46,292)
Increase in prepaid expenses and other current assets	(13,890)	(11,382)
Increase (decrease) in accounts payable, accrued expenses and income taxes payable	53,744	(24,244)
Net cash (used in) provided by operating activities	(86,191)	6,179
Cash flows used in investing activities:
Cash paid in connection with acquisitions, net of cash acquired	(63,840)	(72,804)
Capital expenditures	(65,491)	(47,916)
Proceeds from disposal of property and equipment	22	26
Net cash used in investing activities	(129,309)	(120,694)
Cash flows provided by financing activities:
Repayment of loans, notes payable and long-term obligations	(417,281)	(25,311)
Proceeds from loans, notes payable and long-term obligations	636,884	129,150
Exercise of stock options	878	787
Debt issuance costs	(10,343)
Net cash provided by financing activities	210,138	104,626
Effect of exchange rate changes on cash and cash equivalents	(772)	3,339
Net decrease in cash and cash equivalents and restricted cash	(6,134)	(6,550)
Cash and cash equivalents and restricted cash at beginning of period	54,408	64,765
Cash and cash equivalents and restricted cash at end of period	48,274	58,215
Cash paid during the period
Interest	77,371	60,871
Income taxes, net of refunds	$ 56,683	$ 65,002

Description of Business

Description of Business	9 Months Ended
	Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Note 1 – Description of Business Party City Holdco Inc. (the “Company” or “Party City Holdco”) is a vertically integrated supplier of decorated party goods. The Company designs, manufactures, sources and distributes party goods, including paper and plastic tableware, metallic and latex balloons, Halloween and other costumes, accessories, novelties, gifts and stationery. The Company’s retail operations include over 900 specialty retail party supply stores (including franchise stores) in the United States and Canada, operating under the name Party City, e-commerce Party City Holdco is a holding company with no operating assets or operations. The Company owns 100% of PC Nextco Holdings, LLC (“PC Nextco”), which owns 100% of PC Intermediate Holdings, Inc. (“PC Intermediate”). PC Intermediate owns 100% of Party City Holdings Inc. (“PCHI”), which owns the Company’s operating subsidiaries.

Basis of Presentation and Recen

Basis of Presentation and Recently Issued Accounting Pronouncements	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Basis of Presentation and Recently Issued Accounting Pronouncements	Note 2 – Basis of Presentation and Recently Issued Accounting Pronouncements The unaudited condensed consolidated financial statements of the Company include the accounts of the Company and its majority-owned and controlled entities. All intercompany balances and transactions have been eliminated in consolidation. The unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring items) considered necessary for a fair presentation have been included in the unaudited condensed consolidated financial statements. The majority of our retail operations define a fiscal year (“Fiscal Year”) as the 52-week 53-week 13-week 53-week Operating results for interim periods are not necessarily indicative of the results to be expected for the year ending December 31, 2018. Our business is subject to substantial seasonal variations as our retail segment has historically realized a significant portion of its net sales, cash flows and net income in the fourth quarter of each year, principally due to its Halloween season sales in October and, to a lesser extent, other year-end 10-K Recently Issued Accounting Pronouncements In June 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-07, non-employee In August 2017, the FASB issued ASU 2017-12, In November 2016, the FASB issued ASU 2016-18, In August 2016, the FASB issued ASU 2016-15, In February 2016, the FASB issued ASU 2016-02, In January 2016, the FASB issued ASU 2016-01, In May 2014, the FASB issued ASU 2014-09,

Inventories

Inventories	9 Months Ended
	Sep. 30, 2018
Inventory Disclosure [Abstract]
Inventories	Note 3 – Inventories Inventories consisted of the following: September 30, 2018 December 31, 2017 Finished goods $ 760,923 $ 562,809 Raw materials 33,686 30,346 Work in process 16,173 10,911 $ 810,782 $ 604,066 Inventories are valued at the lower of cost or net realizable value. The Company principally determines the cost of inventory using the weighted average method. The Company estimates retail inventory shrinkage for the period between physical inventory dates on a store-by-store

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Note 4 – Income Taxes On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (“the Act”) was signed into law. The Act significantly changed U.S. tax law, including lowering the U.S. corporate income tax rate from 35% to 21%, effective January 1, 2018, and implementing a one-time non-U.S. While these amounts represent the Company’s best estimates of the impacts of the reduction in the federal corporate income tax rate and the deemed repatriation Transition Tax, the final impacts of the Act may differ from the Company’s estimates due to, among other things, changes in the Company’s interpretations and assumptions, additional guidance to be issued by the IRS, and actions the Company may take. As provided in SAB 118, any adjustments to these provisional amounts will be recorded as they are identified during the measurement period, which ends no later than December 22, 2018. Additionally, the Act subjects a U.S. shareholder to current tax on “global intangible low-taxed

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2018
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss	Note 5 – Changes in Accumulated Other Comprehensive Loss The changes in accumulated other comprehensive loss consisted of the following: Three Months Ended September 30, 2018 Foreign Currency Adjustments Impact of Foreign Exchange Contracts, Net of Taxes Total, Net of Taxes Balance at June 30, 2018 $ (40,917 ) $ 1,120 $ (39,797 ) Other comprehensive income before reclassifications 419 217 636 Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive loss — (192 ) (192 ) Net current-period other comprehensive income 419 25 444 Balance at September 30, 2018 $ (40,498 ) $ 1,145 $ (39,353 ) Three Months Ended September 30, 2017 Foreign Currency Adjustments Impact of Foreign Exchange Contracts, Net of Taxes Total, Net of Taxes Balance at June 30, 2017 $ (41,650 ) $ (378 ) $ (42,028 ) Other comprehensive income (loss) before reclassifications 5,297 (281 ) 5,016 Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive income — 229 229 Net current-period other comprehensive income (loss) 5,297 (52 ) 5,245 Balance at September 30, 2017 $ (36,353 ) $ (430 ) $ (36,783 ) Nine Months Ended September 30, 2018 Foreign Currency Adjustments Impact of Foreign Exchange Contracts, Net of Taxes Total, Net of Taxes Balance at December 31, 2017 $ (35,610 ) $ (208 ) $ (35,818 ) Other comprehensive (loss) income before reclassifications, net of income tax (4,888 ) 1,188 (3,700 ) Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive income, net of income tax — 165 165 Net current-period other comprehensive (loss) income (4,888 ) 1,353 (3,535 ) Balance at September 30, 2018 $ (40,498 ) $ 1,145 $ (39,353 ) Nine Months Ended September 30, 2017 Foreign Currency Adjustments Impact of Foreign Exchange Contracts, Net of Taxes Total, Net of Taxes Balance at December 31, 2016 $ (53,171 ) $ 932 $ (52,239 ) Other comprehensive income (loss) before reclassifications, net of income tax 16,818 (1,077 ) 15,741 Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive income, net of income tax — (285 ) (285 ) Net current-period other comprehensive income (loss) 16,818 (1,362 ) 15,456 Balance at September 30, 2017 $ (36,353 ) $ (430 ) $ (36,783 )

Capital Stock

Capital Stock	9 Months Ended
	Sep. 30, 2018
Federal Home Loan Banks [Abstract]
Capital Stock	Note 6 – Capital Stock At September 30, 2018, the Company’s authorized capital stock consisted of 300,000,000 shares of $0.01 par value common stock and 15,000,000 shares of $0.01 par value preferred stock.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2018
Segment Reporting [Abstract]
Segment Information	Note 7 – Segment Information Industry Segments The Company has two identifiable business segments. The Wholesale segment designs, manufactures, sources and distributes decorated party goods, including paper and plastic tableware, metallic and latex balloons, Halloween and other costumes, accessories, novelties, gifts and stationery throughout the world. The Retail segment operates specialty retail party supply stores in the United States and Canada, principally under the names Party City, Halloween City and Toy City, and it operates e-commerce Wholesale Retail Consolidated Three Months Ended September 30, 2018 Revenues: Net sales $ 424,569 $ 375,680 $ 800,249 Royalties and franchise fees — 2,206 2,206 Total revenues 424,569 377,886 802,455 Eliminations (249,409 ) — (249,409 ) Net revenues $ 175,160 $ 377,886 $ 553,046 Income from operations $ 15,501 $ 16,237 $ 31,738 Interest expense, net 27,705 Other expense, net 5,696 Loss before income taxes $ (1,663 ) Wholesale Retail Consolidated Three Months Ended September 30, 2017 Revenues: Net sales $ 381,858 $ 364,057 $ 745,915 Royalties and franchise fees — 2,759 2,759 Total revenues 381,858 366,816 748,674 Eliminations (188,565 ) 0 (188,565 ) Net revenues $ 193,293 $ 366,816 $ 560,109 Income from operations $ 22,808 $ 14,580 $ 37,388 Interest expense, net 23,228 Other income, net 593 Income before income taxes $ 13,567 The Company’s industry segment data for the nine months ended September 30, 2018 and September 30, 2017 was as follows: Wholesale Retail Consolidated Nine Months Ended September 30, 2018 Revenues: Net sales $ 988,129 $ 1,150,609 $ 2,138,738 Royalties and franchise fees — 7,832 7,832 Total revenues 988,129 1,158,441 2,146,570 Eliminations (524,689 ) — (524,689 ) Net revenues $ 463,440 $ 1,158,441 $ 1,621,881 Income from operations $ 31,997 $ 87,448 $ 119,445 Interest expense, net 76,481 Other expense, net 9,076 Income before income taxes $ 33,888 Wholesale Retail Consolidated Nine Months Ended September 30, 2017 Revenues: Net sales $ 929,255 $ 1,103,127 $ 2,032,382 Royalties and franchise fees — 9,020 9,020 Total revenues 929,255 1,112,147 2,041,402 Eliminations (459,416 ) — (459,416 ) Net revenues $ 469,839 $ 1,112,147 $ 1,581,986 Income from operations $ 49,258 $ 63,500 $ 112,758 Interest expense, net 65,214 Other expense, net 860 Income before income taxes $ 46,684

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 8 – Commitments and Contingencies The Company is a party to certain claims and litigation in the ordinary course of business. The Company does not believe these proceedings will result, individually or in the aggregate, in a material adverse effect on its financial condition or future results of operations. On April 5, 2016, a derivative complaint was filed in the Supreme Court for the State of New York, naming certain directors and executives as defendants, and naming the Company as a nominal defendant. The complaint seeks unspecified damages and costs, and corporate governance reforms, for alleged injury to the Company in connection with public filings related to the Company’s April 2015 IPO, compensation paid to executives, and the termination of the management agreement disclosed in the initial public offering-related public filings. The Company intends to vigorously defend itself against this action. The Company is unable, at this time, to determine whether the outcome of the litigation would have a material impact on its results of operations, financial condition or cash flows.

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Note 9 – Derivative Financial Instruments The Company is directly and indirectly affected by changes in certain market conditions. These changes in market conditions may adversely impact the Company’s financial performance and are referred to as market risks. The Company, when deemed appropriate, uses derivatives as a risk management tool to mitigate the potential impact of certain market risks. The primary market risks managed through the use of derivative financial instruments are interest rate risk and foreign currency exchange rate risk. Interest Rate Risk Management As part of the Company’s risk management strategy, the Company periodically uses interest rate swap agreements to hedge the variability of cash flows on floating rate debt obligations. Accordingly, interest rate swap agreements are reflected in the consolidated balance sheets at fair value and the related gains and losses on these contracts are deferred in equity and recognized in interest expense over the same period in which the related interest payments being hedged are recognized in income. The Company did not utilize interest rate swap agreements during the nine months ended September 30, 2018 and the nine months ended September 30, 2017. Foreign Exchange Risk Management A portion of the Company’s cash flows are derived from transactions denominated in foreign currencies. In order to reduce the uncertainty of foreign exchange rate movements on transactions denominated in foreign currencies, including the British Pound Sterling, the Canadian Dollar, the Euro, the Malaysian Ringgit, the Australian Dollar, and the Mexican Peso, the Company enters into foreign exchange contracts with major international financial institutions. These forward contracts, which typically mature within one year, are designed to hedge anticipated foreign currency transactions, primarily inventory purchases and sales. For contracts that qualify for hedge accounting, the terms of the foreign exchange contracts are such that cash flows from the contracts should be highly effective in offsetting the expected cash flows from the underlying forecasted transactions. The foreign currency exchange contracts are reflected in the condensed consolidated balance sheets at fair value. At September 30, 2018 and December 31, 2017, the Company had foreign currency exchange contracts that qualified for hedge accounting. No components of these agreements were excluded in the measurement of hedge effectiveness. As these hedges are 100% effective, there is no current impact on earnings due to hedge ineffectiveness. The Company anticipates that substantially all unrealized gains and losses in accumulated other comprehensive loss related to these foreign currency exchange contracts will be reclassified into earnings by June 2019. The following table displays the fair values of the Company’s derivatives at September 30, 2018 and December 31, 2017: Derivative Assets Derivative Liabilities Balance Sheet Line Fair Value Balance Sheet Line Fair Value Balance Sheet Line Fair Value Balance Sheet Line Fair Value Derivative Instrument September 30, 2018 December 31, 2017 September 30, 2018 December 31, 2017 Foreign Exchange Contracts (a ) PP $ 728 (a ) PP $ 95 (b ) AE $ — (b ) AE $ 99 (a) PP = Prepaid expenses and other current assets (b) AE = Accrued expenses The following table displays the notional amounts of the Company’s derivatives at September 30, 2018 and December 31, 2017: Derivative Instrument September 30, 2018 December 31, 2017 Foreign Exchange Contracts $ 10,743 $ 21,672

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 10 – Fair Value Measurements The provisions of ASC Topic 820, “Fair Value Measurement”, define fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. ASC Topic 820 established a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: • Level 1 — Quoted prices in active markets for identical assets or liabilities. • Level 2 — Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. • Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. During 2017, the Company acquired a 28% ownership interest in Punchbowl, Inc. (“Punchbowl”), a provider of digital greeting cards and digital invitations. At such time, the Company provided Punchbowl’s other investors with the ability to “put” their interest in Punchbowl to the Company at a future date. The Company is adjusting such put liability to fair value on a recurring basis. The liability represents a Level 3 fair value measurement as it is based on unobservable inputs. During 2017, the Company and Ampology, a subsidiary of Trivergence, reached an agreement to form a new legal entity, Kazzam, LLC (“Kazzam”), for the purpose of designing, developing and launching an online exchange platform for party-related services. As part of Ampology’s compensation for designing, developing and launching the exchange platform, Ampology received an ownership interest in Kazzam. The interest has been recorded as redeemable securities in the mezzanine of the Company’s consolidated balance sheet as, in the future, Ampology has the right to cause the Company to purchase the interest. The mezzanine liability is adjusted to fair value on a recurring basis. The liability represents a Level 3 fair value measurement as it is based on unobservable inputs. The following table shows assets and liabilities as of September 30, 2018 that are measured at fair value on a recurring basis: Level 1 Level 2 Level 3 Total as of September 30, 2018 Derivative assets $ — $ 728 $ — $ 728 Derivative liabilities — — — — Kazzam liability — — 3,298 3,298 Punchbowl put liability — — 299 299 The following table shows assets and liabilities as of December 31, 2017 that are measured at fair value on a recurring basis: Level 1 Level 2 Level 3 Total as of December 31, 2017 Derivative assets $ — $ 95 $ — $ 95 Derivative liabilities — 99 — 99 Kazzam liability — — 3,590 3,590 Punchbowl put liability — — 2,122 2,122 The majority of the Company’s non-financial instruments, a non-financial instrument the non-financial instrument the non-financial instrument The carrying amounts and fair values of borrowings under the Term Loan Credit Agreement and its senior notes as of September 30, 2018 are as follows: September 30, 2018 Carrying Amount Fair Value Term Loan Credit Agreement $ 792,664 $ 808,084 Senior Notes – due 2023 345,986 355,282 Senior Notes – due 2026 493,897 505,755 The fair values of the Term Loan Credit Agreement and the senior notes represent Level 2 fair value measurements as the debt instruments trade in inactive markets. The carrying amounts for other long-term debt approximated fair value at September 30, 2018 based on the discounted future cash flows of each instrument at rates currently offered for similar debt instruments of comparable maturity.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2018
Earnings Per Share [Abstract]
Earnings Per Share	Note 11 – Earnings Per Share Basic earnings per share are computed by dividing net income attributable to common shareholders of Party City Holdco Inc. by the weighted average number of common shares outstanding for the period. Diluted earnings per share are calculated based on the weighted average number of outstanding common shares plus the dilutive effect of stock options and warrants, as if they were exercised, and restricted stock units, as if they vested. A reconciliation between basic and diluted income per share is as follows: Three Months Ended September 30, 2018 Three Months Ended September 30, 2017 Nine Months Ended September 30, 2018 Nine Months Ended September 30, 2017 Net (loss) income attributable to common shareholders of Party City Holdco Inc. $ (2,420 ) $ 10,084 $ 24,934 $ 30,383 Weighted average shares – Basic 96,494,565 119,587,339 96,449,011 119,546,451 Effect of dilutive securities: Warrants — — — — Restricted stock units — — 9,004 — Stock options — 1,325,510 1,226,275 1,361,528 Weighted average shares – Diluted 96,494,565 120,912,849 97,684,290 120,907,979 Net (loss) income per share attributable to common shareholders of Party City Holdco Inc. – Basic $ (0.03 ) $ 0.08 $ 0.26 $ 0.25 Net (loss) income per share attributable to common shareholders of Party City Holdco Inc. – Diluted $ (0.03 ) $ 0.08 $ 0.26 $ 0.25 During the three months ended September 30, 2018 and September 30, 2017, 4,157,559 stock options and 2,370,106 stock options, respectively, were excluded from the calculation of diluted earnings per share as they were anti-dilutive. Additionally, during the three months ended September 30, 2018 and September 30, 2017, 596,000 warrants and 596,000 warrants, respectively, were excluded from the calculation of diluted earnings per share as they were anti-dilutive. Further, during the three months ended September 30, 2018 and September 30, 2017, 191,033 restricted stock units and 0 restricted stock units, respectively, were excluded from the calculation of diluted earnings per share as they were anti-dilutive. During the nine months ended September 30, 2018 and September 30, 2017, 2,354,244 stock options and 2,370,106 stock options, respectively, were excluded from the calculation of diluted earnings per share as they were anti-dilutive. Additionally, during both the nine months ended September 30, 2018 and the nine months ended September 30, 2017, 596,000 warrants were excluded from the calculation of diluted earnings per share as they were anti-dilutive. Further, during both the nine months ended September 30, 2018 and the nine months ended September 30, 2017, 0 restricted stock units were excluded from the calculation of diluted earnings per share as they were anti-dilutive.

Long-Term Obligations

Long-Term Obligations	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Long-Term Obligations	Note 12 – Long-Term Obligations Long-term obligations at September 30, 2018 and December 31, 2017 consisted of the following: September 30, 2018 December 31, 2017 Term Loan Credit Agreement $ 792,664 $ 1,196,505 Capital lease obligations 3,653 3,276 Senior Notes - due 2026 493,897 — Senior Notes - due 2023 345,986 345,368 Total long-term obligations 1,636,200 1,545,149 Less: current portion (13,231 ) (13,059 ) Long-term obligations, excluding current portion $ 1,622,969 $ 1,532,090 Term Loan Credit Agreement Amendment During February 2018, the Company amended its Term Loan Credit Agreement. At the time of the amendment, all outstanding term loans were replaced with new term loans for the same principal amount. The applicable margin for ABR borrowings was lowered from 2.00% to 1.75% and the applicable margin for LIBOR borrowings was lowered from 3.00% to 2.75%. Additionally, based on the terms of the amendment, the ABR and LIBOR margins will drop to 1.50% and 2.50%, respectively, if the Company’s Senior Secured Leverage Ratio, as defined by the agreement, falls below 3.2 to 1.0. As the Term Loan Credit Agreement is a loan syndication, the Company assessed, on a creditor-by-creditor wrote-off August 2018 Refinancing During August 2018, the Company executed a refinancing of its debt portfolio and issued $500,000 of new senior notes at an interest rate of 6.625%. The notes will mature in August 2026. The Company used the proceeds from the notes to: (i) reduce the outstanding balance under its existing ABL Facility, which is included in loans and notes payable on the Company’s condensed consolidated balance sheet, by $90,000 and (ii) voluntarily prepay $400,000 of the outstanding balance under its existing Term Loan Credit Agreement. Additionally, as part of the refinancing, the Company extended the maturity of the ABL Facility to August 2023. As the partial prepayment of the Term Loan Credit Agreement was in accordance with the terms of such agreement, at the time of such prepayment the Company wrote-off pro-rata To the extent that investors in the Term Loan Credit Agreement participated in the new notes, the Company assessed whether the refinancing should be accounted for as an extinguishment on a creditor-by-creditor wrote-off Additionally, in conjunction with the issuance of the notes, the Company incurred third-party fees (principally banker fees). To the extent that such fees related to investors for whom their original debt was not extinguished, the Company expensed the portion of such fees, $2,270 in aggregate, that related to such investors. Such amount was recorded in other expense in the Company’s consolidated statement of operations and comprehensive income and included in financing activities in the Company’s consolidated statement of cash flows. The remainder of the third-party fees, $6,230, have been capitalized and will be amortized over the remaining life of the debt using the effective interest method. Further, in conjunction with the extension of the ABL Facility, the Company compared the borrowing capacities of the pre-amendment creditor-by-creditor written-off. Senior Notes – due 2026 Interest on the new notes is payable semi-annually in arrears on February 1st and August 1st of each year. The notes are guaranteed, jointly and severally, on a senior basis by each of Party City Holdings Inc.’s existing and future domestic subsidiaries. The notes and the guarantees are general unsecured senior obligations and are effectively subordinated to all other secured debt to the extent of the assets securing such secured debt. The indenture governing the notes contains certain covenants limiting, among other things and subject to certain exceptions, Party City Holdings Inc.’s ability to: • incur additional indebtedness or issue certain disqualified stock and preferred stock; • pay dividends or distributions, redeem or repurchase equity; • prepay subordinated debt or make certain investments; • engage in transactions with affiliates; • consolidate, merge or transfer all or substantially all of PCHI’s assets; • create liens; and • transfer or sell certain assets. The indenture governing the notes also contains certain customary affirmative covenants and events of default. On or after August 1, 2021, the Company may redeem the notes, in whole or in part, at the following (expressed as a percentage of the principal amount to be redeemed): Twelve-month period beginning on August 1, Percentage 2021 103.313 % 2022 101.656 % 2023 and thereafter 100.000 % In addition, the Company may redeem up to 40% of the aggregate principal amount outstanding on or before August 1, 2021 with the cash proceeds from certain equity offerings at a redemption price of 106.625% of the principal amount. The Company may also redeem some or all of the notes before August 1, 2021 at a redemption price of 100% of the principal amount plus a premium that is defined in the indenture. Also, if the Company experiences certain types of change in control, as defined, the Company may be required to offer to repurchase the notes at 101% of their principal amount.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2018
Business Combinations [Abstract]
Acquisitions	Note 13 – Acquisitions During March 2018, the Company acquired 11 franchise stores, which are located in Maryland, for total cash consideration of approximately $14,000. The Company is in the process of finalizing purchase accounting. Additionally, during March 2018, the Company entered into an agreement to acquire 11 independent stores, which are located in Texas, for total consideration of approximately $6,000. The Company will take control of the stores one at a time over a period of approximately one year. The Company is in the process of finalizing purchase accounting for the stores for which it has already taken control. During July 2018, the Company acquired an additional 16 franchise stores, which are located in Pennsylvania, for total cash consideration of approximately $18,800. The Company is in the process of finalizing purchase accounting. Also, during September 2018, the Company acquired an additional 21 franchise stores, which are located in Minnesota, North Dakota and Texas, for total cash consideration of approximately $22,900. The Company is in the process of finalizing purchase accounting. During the three months ended September 30, 2018, the Company recorded a non-recurring During 2017, the Company acquired 85% of the common stock of Granmark, S.A. de C.V., a Mexican manufacturer and wholesaler of party goods. Based on the terms of the acquisition agreement, the Company is required to acquire the remaining 15% interest over the next four years and it has recorded a liability for the estimated purchase price of such interest, $3,021 at September 30, 2018. During 2017, the Company acquired 60% of Print Appeal, Inc. Based on the terms of the acquisition agreement, the Company will acquire the remaining 40% interest in Print Appeal over the next five years and the Company’s liability for the estimated purchase price of such interest was $2,312 at September 30, 2018.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
	Sep. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Note 14 – Revenue from Contracts with Customers In May 2014, the FASB issued ASU 2014-09, Revenue Transactions - Retail Revenue from retail store operations is recognized at the point of sale as control of the product is transferred to the customer at such time. Retail e-commerce The transaction price for the majority of the Company’s retail sales is based on either: 1) the item’s stated price or 2) the stated price adjusted for the impact of a coupon which can only be applied to such transaction. To the extent that the Company charges customers for freight costs on e-commerce Under the terms of its agreements with its franchisees, the Company provides both: 1) brand value (via significant advertising spend) and 2) support with respect to planograms, in exchange for a royalty fee that ranges from 4% to 6% of the franchisees’ sales. The Company records the royalty fees at the time that the franchisees’ sales are recorded. Additionally, although the Company anticipates that future franchise store openings will be limited, when a franchisee opens a new store, the Company receives and records a one-time one-time Revenue Transactions - Wholesale For most of the Company’s wholesale sales, control transfers upon the Company’s shipment of the product as: 1) legal title transfers on such date and 2) the Company has a present right to payment at such time. Wholesale sales returns are not significant as the Company generally only accepts the return of goods that were shipped to the customer in error or that were damaged when received by the customer. Additionally, due to its extensive history operating as a leading party goods wholesaler, the Company has sufficient history with which to estimate future sales returns and it uses the expected value method to estimate such activity. In most cases, the determination of the transaction price is straight-forward as it is fixed based on the contract and/or purchase order. However, a limited number of customers receive volume-based rebates. Additionally, certain customers receive small discounts for early payment (generally 1% of the transaction price). Based on the business’ long history as a leading party goods wholesaler, the Company has sufficient history with which to estimate variable consideration for such volume-based rebates and early payment discounts. To the extent that the Company charges customers for freight costs, the Company records such amounts in revenue. The Company has chosen the pronouncement’s policy election which allows it to exclude all sales taxes and value-added taxes from revenue. The majority of the sales for the Company’s wholesale business are due within 30 to 120 days from the transfer of control of the product and substantially all of the sales are collected within a year from such transfer. For all transactions for which the Company expects to collect the transaction price within a year from the transfer of control, the Company applies one of the pronouncement’s practical expedients and does not adjust the consideration for the effects of a significant financing component. Judgments Although most of the Company’s revenue transactions consist of fixed transaction prices and the transfer of control at either the point of sale (for retail) or when the product is shipped (for wholesale), certain transactions involve a limited number of judgments. For transactions for which control transfers to the customer when the freight carrier delivers the product to the customer, the Company estimates the date of such receipt based on historical shipping times. Additionally, the Company utilizes historical data to estimate sales returns, volume-based rebates and discounts for early payments by customers. Due to its extensive history operating as a leading party goods retailer and wholesaler, the Company has sufficient history with which to estimate such amounts. Other Revenue Topics During the three and nine months ended September 30, 2018 and September 30, 2017, impairment losses recognized on receivables and contract assets arising from the Company’s contracts with customers were immaterial. As a significant portion of the Company’s revenue is either: 1) part of a contract with an original expected duration of one year or less or 2) related to sales-based royalties promised in exchange for licenses of intellectual property, the Company has elected to apply the optional exemptions in paragraphs ASC 606-10-50-14 606-10-50-14A. Additionally, the Company has elected to apply the practical expedient which allows companies to recognize the incremental costs of obtaining a contract as an expense if the amortization period of the asset that the entity otherwise would have recognized would have been one year or less. Disaggregation of Revenue The following table summarizes revenue from contracts with customers for the three months ended September 30, 2018 and September 30, 2017 and the nine months ended September 30, 2018 and September 30, 2017: Three Months Ended September 30, 2018 Three Months Ended September 30, 2017 Nine Months Ended September 30, 2018 Nine Months Ended September 30, 2017 Retail Net Sales: Party City Stores $ 336,355 $ 324,766 $ 1,043,422 $ 993,652 Global E-commerce 34,221 34,130 102,083 104,314 Temporary Stores 5,104 5,161 5,104 5,161 Total Retail Net Sales $ 375,680 $ 364,057 $ 1,150,609 $ 1,103,127 Royalties and Franchise Fees 2,206 2,759 7,832 9,020 Total Retail Revenue $ 377,886 $ 366,816 $ 1,158,441 $ 1,112,147 Wholesale Net Sales: Domestic $ 88,287 $ 98,801 $ 247,243 $ 264,496 International 86,873 94,492 216,197 205,343 Total Wholesale Net Sales $ 175,160 $ 193,293 $ 463,440 $ 469,839 Total Consolidated Revenue $ 553,046 $ 560,109 $ 1,621,881 $ 1,581,986 Financial Statement Impact of Adopting the Pronouncement All of the Company’s revenue is recognized from contracts with customers and, therefore, is subject to the pronouncement. The Company adopted the pronouncement using a modified retrospective approach and applied the guidance to all contracts as of January 1, 2018. On such date, the Company reduced its retained earnings by $78, reduced its accounts receivable by $141, increased its inventory by $11, reduced its accrued expenses by $26, increased its deferred tax asset by $28 and increased its income taxes payable by $2. The cumulative adjustment principally related to certain discounts within the Company’s wholesale business. Additionally, the adoption of the pronouncement impacted the Company’s financial statements for the three and nine months ended September 30, 2018 as it decreased pre-tax pre-tax

Cash, Cash Equivalents and Rest

Cash, Cash Equivalents and Restricted Cash	9 Months Ended
	Sep. 30, 2018
Text Block [Abstract]
Cash, Cash Equivalents and Restricted Cash	Note 15 – Cash, Cash Equivalents and Restricted Cash In November 2016, the FASB issued ASU 2016-18, As a result, the Company’s statement of cash flows for the nine months ended September 30, 2017 has been adjusted to include $155 of restricted cash at December 31, 2016 and $72 of restricted cash at September 30, 2017. The restricted cash, which principally relates to funds that are required to be spent on advertising, is included in “prepaid expenses and other current assets” in the Company’s consolidated balance sheet. Therefore, in the Company’s adjusted consolidated statement of cash flows for the nine months ended September 30, 2017, the change in “prepaid expenses and other current assets” has been adjusted from a cash outflow of $11,299 to a cash outflow of $11,382. The Company’s September 30, 2018 consolidated balance sheet included $48,097 of cash and cash equivalents and $177 of restricted cash and the Company’s December 31, 2017 consolidated balance sheet included $54,291 of cash and cash equivalents and $117 of restricted cash. Restricted cash is recorded in “prepaid expenses and other current assets”.

Basis of Presentation and Rec_2

Basis of Presentation and Recently Issued Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2018
Segment Reporting [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In June 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-07, non-employee In August 2017, the FASB issued ASU 2017-12, In November 2016, the FASB issued ASU 2016-18, In August 2016, the FASB issued ASU 2016-15, In February 2016, the FASB issued ASU 2016-02, In January 2016, the FASB issued ASU 2016-01, In May 2014, the FASB issued ASU 2014-09,
Industry Segments	Industry Segments The Company has two identifiable business segments. The Wholesale segment designs, manufactures, sources and distributes decorated party goods, including paper and plastic tableware, metallic and latex balloons, Halloween and other costumes, accessories, novelties, gifts and stationery throughout the world. The Retail segment operates specialty retail party supply stores in the United States and Canada, principally under the names Party City, Halloween City and Toy City, and it operates e-commerce
Fair Value Measurement	The provisions of ASC Topic 820, “Fair Value Measurement”, define fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. ASC Topic 820 established a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: • Level 1 — Quoted prices in active markets for identical assets or liabilities. • Level 2 — Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. • Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2018
Inventory Disclosure [Abstract]
Inventories	Inventories consisted of the following: September 30, 2018 December 31, 2017 Finished goods $ 760,923 $ 562,809 Raw materials 33,686 30,346 Work in process 16,173 10,911 $ 810,782 $ 604,066

Changes in Accumulated Other _2

Changes in Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2018
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss	The changes in accumulated other comprehensive loss consisted of the following: Three Months Ended September 30, 2018 Foreign Currency Adjustments Impact of Foreign Exchange Contracts, Net of Taxes Total, Net of Taxes Balance at June 30, 2018 $ (40,917 ) $ 1,120 $ (39,797 ) Other comprehensive income before reclassifications 419 217 636 Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive loss — (192 ) (192 ) Net current-period other comprehensive income 419 25 444 Balance at September 30, 2018 $ (40,498 ) $ 1,145 $ (39,353 ) Three Months Ended September 30, 2017 Foreign Currency Adjustments Impact of Foreign Exchange Contracts, Net of Taxes Total, Net of Taxes Balance at June 30, 2017 $ (41,650 ) $ (378 ) $ (42,028 ) Other comprehensive income (loss) before reclassifications 5,297 (281 ) 5,016 Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive income — 229 229 Net current-period other comprehensive income (loss) 5,297 (52 ) 5,245 Balance at September 30, 2017 $ (36,353 ) $ (430 ) $ (36,783 ) Nine Months Ended September 30, 2018 Foreign Currency Adjustments Impact of Foreign Exchange Contracts, Net of Taxes Total, Net of Taxes Balance at December 31, 2017 $ (35,610 ) $ (208 ) $ (35,818 ) Other comprehensive (loss) income before reclassifications, net of income tax (4,888 ) 1,188 (3,700 ) Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive income, net of income tax — 165 165 Net current-period other comprehensive (loss) income (4,888 ) 1,353 (3,535 ) Balance at September 30, 2018 $ (40,498 ) $ 1,145 $ (39,353 ) Nine Months Ended September 30, 2017 Foreign Currency Adjustments Impact of Foreign Exchange Contracts, Net of Taxes Total, Net of Taxes Balance at December 31, 2016 $ (53,171 ) $ 932 $ (52,239 ) Other comprehensive income (loss) before reclassifications, net of income tax 16,818 (1,077 ) 15,741 Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive income, net of income tax — (285 ) (285 ) Net current-period other comprehensive income (loss) 16,818 (1,362 ) 15,456 Balance at September 30, 2017 $ (36,353 ) $ (430 ) $ (36,783 )

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2018
Segment Reporting [Abstract]
Schedule of Company's Industry Segment Data	The Company’s industry segment data for the three months ended September 30, 2018 and September 30, 2017 was as follows: Wholesale Retail Consolidated Three Months Ended September 30, 2018 Revenues: Net sales $ 424,569 $ 375,680 $ 800,249 Royalties and franchise fees — 2,206 2,206 Total revenues 424,569 377,886 802,455 Eliminations (249,409 ) — (249,409 ) Net revenues $ 175,160 $ 377,886 $ 553,046 Income from operations $ 15,501 $ 16,237 $ 31,738 Interest expense, net 27,705 Other expense, net 5,696 Loss before income taxes $ (1,663 ) Wholesale Retail Consolidated Three Months Ended September 30, 2017 Revenues: Net sales $ 381,858 $ 364,057 $ 745,915 Royalties and franchise fees — 2,759 2,759 Total revenues 381,858 366,816 748,674 Eliminations (188,565 ) 0 (188,565 ) Net revenues $ 193,293 $ 366,816 $ 560,109 Income from operations $ 22,808 $ 14,580 $ 37,388 Interest expense, net 23,228 Other income, net 593 Income before income taxes $ 13,567 The Company’s industry segment data for the nine months ended September 30, 2018 and September 30, 2017 was as follows: Wholesale Retail Consolidated Nine Months Ended September 30, 2018 Revenues: Net sales $ 988,129 $ 1,150,609 $ 2,138,738 Royalties and franchise fees — 7,832 7,832 Total revenues 988,129 1,158,441 2,146,570 Eliminations (524,689 ) — (524,689 ) Net revenues $ 463,440 $ 1,158,441 $ 1,621,881 Income from operations $ 31,997 $ 87,448 $ 119,445 Interest expense, net 76,481 Other expense, net 9,076 Income before income taxes $ 33,888 Wholesale Retail Consolidated Nine Months Ended September 30, 2017 Revenues: Net sales $ 929,255 $ 1,103,127 $ 2,032,382 Royalties and franchise fees — 9,020 9,020 Total revenues 929,255 1,112,147 2,041,402 Eliminations (459,416 ) — (459,416 ) Net revenues $ 469,839 $ 1,112,147 $ 1,581,986 Income from operations $ 49,258 $ 63,500 $ 112,758 Interest expense, net 65,214 Other expense, net 860 Income before income taxes $ 46,684

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Values of Derivatives	The following table displays the fair values of the Company’s derivatives at September 30, 2018 and December 31, 2017: Derivative Assets Derivative Liabilities Balance Sheet Line Fair Value Balance Sheet Line Fair Value Balance Sheet Line Fair Value Balance Sheet Line Fair Value Derivative Instrument September 30, 2018 December 31, 2017 September 30, 2018 December 31, 2017 Foreign Exchange Contracts (a ) PP $ 728 (a ) PP $ 95 (b ) AE $ — (b ) AE $ 99 (a) PP = Prepaid expenses and other current assets (b) AE = Accrued expenses
Schedule of Notional Amounts of Derivatives	The following table displays the notional amounts of the Company’s derivatives at September 30, 2018 and December 31, 2017: Derivative Instrument September 30, 2018 December 31, 2017 Foreign Exchange Contracts $ 10,743 $ 21,672

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table shows assets and liabilities as of September 30, 2018 that are measured at fair value on a recurring basis: Level 1 Level 2 Level 3 Total as of September 30, 2018 Derivative assets $ — $ 728 $ — $ 728 Derivative liabilities — — — — Kazzam liability — — 3,298 3,298 Punchbowl put liability — — 299 299 The following table shows assets and liabilities as of December 31, 2017 that are measured at fair value on a recurring basis: Level 1 Level 2 Level 3 Total as of December 31, 2017 Derivative assets $ — $ 95 $ — $ 95 Derivative liabilities — 99 — 99 Kazzam liability — — 3,590 3,590 Punchbowl put liability — — 2,122 2,122
Summary of Carrying Amount and Fair Value	The carrying amounts and fair values of borrowings under the Term Loan Credit Agreement and its senior notes as of September 30, 2018 are as follows: September 30, 2018 Carrying Amount Fair Value Term Loan Credit Agreement $ 792,664 $ 808,084 Senior Notes – due 2023 345,986 355,282 Senior Notes – due 2026 493,897 505,755

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2018
Earnings Per Share [Abstract]
Schedule of Reconciliation Between Basic and Diluted Income Per Share	A reconciliation between basic and diluted income per share is as follows: Three Months Ended September 30, 2018 Three Months Ended September 30, 2017 Nine Months Ended September 30, 2018 Nine Months Ended September 30, 2017 Net (loss) income attributable to common shareholders of Party City Holdco Inc. $ (2,420 ) $ 10,084 $ 24,934 $ 30,383 Weighted average shares – Basic 96,494,565 119,587,339 96,449,011 119,546,451 Effect of dilutive securities: Warrants — — — — Restricted stock units — — 9,004 — Stock options — 1,325,510 1,226,275 1,361,528 Weighted average shares – Diluted 96,494,565 120,912,849 97,684,290 120,907,979 Net (loss) income per share attributable to common shareholders of Party City Holdco Inc. – Basic $ (0.03 ) $ 0.08 $ 0.26 $ 0.25 Net (loss) income per share attributable to common shareholders of Party City Holdco Inc. – Diluted $ (0.03 ) $ 0.08 $ 0.26 $ 0.25

Long-Term Obligations (Tables)

Long-Term Obligations (Tables)	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Summary of Long-Term Obligations	Long-term obligations at September 30, 2018 and December 31, 2017 consisted of the following: September 30, 2018 December 31, 2017 Term Loan Credit Agreement $ 792,664 $ 1,196,505 Capital lease obligations 3,653 3,276 Senior Notes - due 2026 493,897 — Senior Notes - due 2023 345,986 345,368 Total long-term obligations 1,636,200 1,545,149 Less: current portion (13,231 ) (13,059 ) Long-term obligations, excluding current portion $ 1,622,969 $ 1,532,090
Summary of Debt Instrument Redemption	On or after August 1, 2021, the Company may redeem the notes, in whole or in part, at the following (expressed as a percentage of the principal amount to be redeemed): Twelve-month period beginning on August 1, Percentage 2021 103.313 % 2022 101.656 % 2023 and thereafter 100.000 %

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	9 Months Ended
	Sep. 30, 2018
Revenue from Contract with Customer [Abstract]
Summary of Revenue from Contracts with Customers	The following table summarizes revenue from contracts with customers for the three months ended September 30, 2018 and September 30, 2017 and the nine months ended September 30, 2018 and September 30, 2017: Three Months Ended September 30, 2018 Three Months Ended September 30, 2017 Nine Months Ended September 30, 2018 Nine Months Ended September 30, 2017 Retail Net Sales: Party City Stores $ 336,355 $ 324,766 $ 1,043,422 $ 993,652 Global E-commerce 34,221 34,130 102,083 104,314 Temporary Stores 5,104 5,161 5,104 5,161 Total Retail Net Sales $ 375,680 $ 364,057 $ 1,150,609 $ 1,103,127 Royalties and Franchise Fees 2,206 2,759 7,832 9,020 Total Retail Revenue $ 377,886 $ 366,816 $ 1,158,441 $ 1,112,147 Wholesale Net Sales: Domestic $ 88,287 $ 98,801 $ 247,243 $ 264,496 International 86,873 94,492 216,197 205,343 Total Wholesale Net Sales $ 175,160 $ 193,293 $ 463,440 $ 469,839 Total Consolidated Revenue $ 553,046 $ 560,109 $ 1,621,881 $ 1,581,986

Description of Business - Addit

Description of Business - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2018outletCountryStore
Minimum [Member]
Basis Of Presentation [Line Items]
Number stores | outlet	40,000
Number of countries in which products available | Country	100
PC Nextco [Member]
Basis Of Presentation [Line Items]
Ownership percentage	100.00%
PC Intermediate [Member]
Basis Of Presentation [Line Items]
Ownership percentage	100.00%
Party City Holdings Inc [Member]
Basis Of Presentation [Line Items]
Ownership percentage	100.00%
United States and Canada [Member]
Basis Of Presentation [Line Items]
Number stores	900
United States and Canada [Member] | Halloween City Stores [Member]
Basis Of Presentation [Line Items]
Number stores	250
United States and Canada [Member] | Halloween City and Toy City [Member]
Basis Of Presentation [Line Items]
Number stores	50

Basis of Presentation and Rec_3

Basis of Presentation and Recently Issued Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands	Jan. 01, 2018	Sep. 30, 2018
Minimum [Member]
Significant Accounting Policies [Line Items]
Retail operations period of fiscal year		364 days
Retail operations period of fiscal quarter		91 days
Maximum [Member]
Significant Accounting Policies [Line Items]
Retail operations period of fiscal year		371 days
Retail operations period of fiscal quarter		98 days
Customer Payments [Member] | Accounting Standards Update 2014-09 [Member]
Significant Accounting Policies [Line Items]
Increase (decrease) in retained earnings	$ (46)
Metallic Balloon Sales [Member] | Accounting Standards Update 2014-09 [Member]
Significant Accounting Policies [Line Items]
Increase (decrease) in retained earnings	8
Discount Sale [Member] | Accounting Standards Update 2014-09 [Member]
Significant Accounting Policies [Line Items]
Increase (decrease) in retained earnings	$ (40)

Inventories - Inventories (Deta

Inventories - Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Finished goods	$ 760,923	$ 562,809
Raw materials	33,686	30,346
Work in process	16,173	10,911
Inventories, net	$ 810,782	$ 604,066

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Line Items]
U.S. corporate income tax rate		35.00%
Provisional income tax benefit related to remeasurement of domestic net deferred tax liabilities and deferred tax assets		$ 90,965
Net provisional income tax expense related to deemed repatriation of unremitted earnings of foreign subsidiaries		$ 1,132
Scenario, Forecast [Member]
Income Taxes [Line Items]
U.S. corporate income tax rate	21.00%

Changes in Accumulated Other _3

Changes in Accumulated Other Comprehensive Loss - Changes in Accumulated and Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			$ 968,435
Ending balance	$ 994,768		994,768
Foreign Currency Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(40,917)	$ (41,650)	(35,610)	$ (53,171)
Other comprehensive (loss) income before reclassifications, net of income tax	419	5,297	(4,888)	16,818
Net current-period other comprehensive (loss) income	419	5,297	(4,888)	16,818
Ending balance	(40,498)	(36,353)	(40,498)	(36,353)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	1,120	(378)	(208)	932
Other comprehensive (loss) income before reclassifications, net of income tax	217	(281)	1,188	(1,077)
Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive income, net of income tax	(192)	229	165	(285)
Net current-period other comprehensive (loss) income	25	(52)	1,353	(1,362)
Ending balance	1,145	(430)	1,145	(430)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(39,797)	(42,028)	(35,818)	(52,239)
Other comprehensive (loss) income before reclassifications, net of income tax	636	5,016	(3,700)	15,741
Amounts reclassified from accumulated other comprehensive loss to the condensed consolidated statement of operations and comprehensive income, net of income tax	(192)	229	165	(285)
Net current-period other comprehensive (loss) income	444	5,245	(3,535)	15,456
Ending balance	$ (39,353)	$ (36,783)	$ (39,353)	$ (36,783)

Capital Stock - Additional Info

Capital Stock - Additional Information (Detail)	Sep. 30, 2018$ / sharesshares
Equity [Abstract]
Authorized capital stock | shares	300,000,000
Common stock, par value | $ / shares	$ 0.01
Preferred stock, par value | $ / shares	$ 0.01
Authorized preferred stock | shares	15,000,000

Segment Information - Additiona

Segment Information - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2018Segment
Segment Reporting [Abstract]
Number of business segments	2

Segment Information - Schedule

Segment Information - Schedule of Company's Industry Segment Data (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Total revenues	$ 553,046	$ 560,109	$ 1,621,881	$ 1,581,986
Income from operations	31,738	37,388	119,445	112,758
Interest expense, net	27,705	23,228	76,481	65,214
Other income (expense), net	5,696	593	9,076	860
Income (loss) before income taxes	(1,663)	13,567	33,888	46,684
Net Sales [Member]
Revenues:
Revenues	550,840	557,350	1,614,049	1,572,966
Royalties and Franchise Fees [Member]
Revenues:
Revenues	2,206	2,759	7,832	9,020
Wholesale [Member]
Revenues:
Total revenues	175,160	193,293	463,440	469,839
Income from operations	15,501	22,808	31,997	49,258
Retail [Member]
Revenues:
Total revenues	377,886	366,816	1,158,441	1,112,147
Income from operations	16,237	14,580	87,448	63,500
Retail [Member] | Net Sales [Member]
Revenues:
Revenues	375,680	364,057	1,150,609	1,103,127
Retail [Member] | Royalties and Franchise Fees [Member]
Revenues:
Revenues	2,206	2,759	7,832	9,020
Operating Segments [Member]
Revenues:
Total revenues	802,455	748,674	2,146,570	2,041,402
Operating Segments [Member] | Net Sales [Member]
Revenues:
Revenues	800,249	745,915	2,138,738	2,032,382
Operating Segments [Member] | Royalties and Franchise Fees [Member]
Revenues:
Revenues	2,206	2,759	7,832	9,020
Operating Segments [Member] | Wholesale [Member]
Revenues:
Total revenues	424,569	381,858	988,129	929,255
Operating Segments [Member] | Wholesale [Member] | Net Sales [Member]
Revenues:
Revenues	424,569	381,858	988,129	929,255
Operating Segments [Member] | Retail [Member]
Revenues:
Total revenues	377,886	366,816	1,158,441	1,112,147
Operating Segments [Member] | Retail [Member] | Net Sales [Member]
Revenues:
Revenues	375,680	364,057	1,150,609	1,103,127
Operating Segments [Member] | Retail [Member] | Royalties and Franchise Fees [Member]
Revenues:
Revenues	2,206	2,759	7,832	9,020
Eliminations [Member]
Revenues:
Total revenues	(249,409)	(188,565)	(524,689)	(459,416)
Eliminations [Member] | Wholesale [Member]
Revenues:
Total revenues	$ (249,409)	(188,565)	$ (524,689)	$ (459,416)
Eliminations [Member] | Retail [Member]
Revenues:
Total revenues		$ 0

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2018
Derivative [Line Items]
Foreign currency exchange contracts reclassified date	2019-06
Foreign Exchange Risk Management [Member]
Derivative [Line Items]
Hedging effectiveness	100.00%
Foreign Exchange Risk Management [Member] | Maximum [Member]
Derivative [Line Items]
Foreign exchange forward contracts maturity	1 year

Derivative Financial Instrume_4

Derivative Financial Instruments - Schedule of Fair Values of Derivatives (Detail) - Foreign Exchange Contracts [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	$ 728	$ 95
Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities		$ 99

Derivative Financial Instrume_5

Derivative Financial Instruments - Schedule of Notional Amounts of Derivatives (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Notional amounts	$ 10,743,000	$ 21,672,000

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	Dec. 31, 2017
Punchbowl Inc [Member]
Debt Instrument [Line Items]
Equity method investment, ownership percentage	28.00%

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 728	$ 95
Derivative liabilities		99
Punchbowl Inc [Member] | Put Option [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	299	2,122
Kazzam LLC [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	3,298	3,590
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	728	95
Derivative liabilities		99
Level 3 [Member] | Punchbowl Inc [Member] | Put Option [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	299	2,122
Level 3 [Member] | Kazzam LLC [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	$ 3,298	$ 3,590

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Carrying Amount and Fair Value (Detail) $ in Thousands	Sep. 30, 2018USD ($)
Term Loan Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	$ 792,664
Debt Instrument Fair Value	808,084
Senior Notes - Due 2023 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	345,986
Debt Instrument Fair Value	355,282
Senior Notes - Due 2026 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	493,897
Debt Instrument Fair Value	$ 505,755

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Reconciliation Between Basic and Diluted Income Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net (loss) income attributable to common shareholders of Party City Holdco Inc.	$ (2,420)	$ 10,084	$ 24,934	$ 30,383
Weighted average shares - Basic	96,494,565	119,587,339	96,449,011	119,546,451
Effect of dilutive securities:
Warrants	0	0	0	0
Restricted stock units			9,004
Stock options		1,325,510	1,226,275	1,361,528
Weighted average shares - Diluted	96,494,565	120,912,849	97,684,290	120,907,979
Net (loss) income per share attributable to common shareholders of Party City Holdco Inc. - Basic	$ (0.03)	$ 0.08	$ 0.26	$ 0.25
Net (loss) income per share attributable to common shareholders of Party City Holdco Inc. - Diluted	$ (0.03)	$ 0.08	$ 0.26	$ 0.25

Earnings Per share - Additional

Earnings Per share - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Employee Stock Option [Member]
Earnings Per Share Basic And Diluted [Line Items]
Antidilutive securities excluded from calculation of earnings per share	4,157,559	2,370,106	2,354,244	2,370,106
Warrant [Member]
Earnings Per Share Basic And Diluted [Line Items]
Antidilutive securities excluded from calculation of earnings per share	596,000	596,000	596,000	596,000
Restricted Stock Units (RSUs) [Member]
Earnings Per Share Basic And Diluted [Line Items]
Antidilutive securities excluded from calculation of earnings per share	191,033	0	0	0

Long-Term Obligations - Summary

Long-Term Obligations - Summary of Long-Term Obligations (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total long-term obligations	$ 1,636,200	$ 1,545,149
Less: current portion	(13,231)	(13,059)
Long-term obligations, excluding current portion	1,622,969	1,532,090
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Total long-term obligations	3,653	3,276
Term Loan Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Total long-term obligations	792,664	1,196,505
Senior Notes - Due 2026 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Total long-term obligations	493,897
Senior Notes - Due 2023 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Total long-term obligations	$ 345,986	$ 345,368

Long-Term Obligations - Term Lo

Long-Term Obligations - Term Loan Credit Agreement Amendment - Additional Information (Detail) - Term Loan Credit Agreement Amendment [Member] - Secured Debt [Member] $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 28, 2018	Mar. 31, 2018USD ($)	Dec. 31, 2017
Debt Instrument [Line Items]
Banker and legal fees		$ 856
Other Expense [Member]
Debt Instrument [Line Items]
Write off of deferred financing costs		186
Write off of capitalized original issue discount		102
Write off of capitalized call premium		58
Banker and legal fees		$ 800
Maximum [Member]
Debt Instrument [Line Items]
Senior secured leverage ratio	3.2
Minimum [Member]
Debt Instrument [Line Items]
Senior secured leverage ratio	1
Alternate Base Interest Rate Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%		2.00%
Debt instrument interest rate increase decrease	1.50%
LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%		3.00%
Debt instrument interest rate increase decrease	2.50%

Long-Term Obligations - August

Long-Term Obligations - August 2018 Refinancing - Additional Information (Detail) - USD ($) $ in Thousands	Aug. 09, 2018	Aug. 31, 2018
Senior Notes - Due 2026 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Face amount	$ 500,000
Debt instrument interest rate	6.625%
Debt instrument maturity date	Aug. 31, 2026
Debt cost incurred		$ 2,270
Debt costs capitalized		6,230
Senior Notes - Due 2023 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument maturity date	Aug. 31, 2023
Write off of deferred financing costs		29
Debt costs capitalized		986
Senior Notes - Due 2023 [Member] | Senior Notes [Member] | Loans and Notes Payable [Member]
Debt Instrument [Line Items]
Debt repayments	$ 90,000
Term Loan Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Debt repayments	$ 400,000
Deferred financing costs and original issuance discount		1,824
Term Loan Credit Agreement [Member] | Secured Debt [Member] | Other Expense [Member]
Debt Instrument [Line Items]
Write off of deferred financing costs		$ 968

Long-term Obligations - Summa_2

Long-term Obligations - Summary of Debt Instrument Redemption (Detail) - Senior Notes - Due 2026 [Member] - Senior Notes [Member]	9 Months Ended
	Sep. 30, 2018
Twelve-Month Period Beginning on August 1, 2021 [Member]
Debt Instrument, Redemption [Line Items]
Percentage of principal amount to be redeemed	103.313%
Twelve-Month Period Beginning on August 1, 2022 [Member]
Debt Instrument, Redemption [Line Items]
Percentage of principal amount to be redeemed	101.656%
Twelve-Month Period Beginning on August 1, 2023 and Thereafter [Member]
Debt Instrument, Redemption [Line Items]
Percentage of principal amount to be redeemed	100.00%

Long-Term Obligations - Senior

Long-Term Obligations - Senior Notes - due 2026 - Additional Information (Detail) - Senior Notes - Due 2026 [Member] - Senior Notes [Member]	9 Months Ended
	Sep. 30, 2018
Debt Instrument [Line Items]
Repurchase of senior notes of principal amount	101.00%
Debt Instrument Redemption By Equity Offering Before August 1, 2021 [Member]
Debt Instrument [Line Items]
Equity offering for senior notes description	Cash proceeds from certain equity offerings
Percentage price of principal amount redeemed	106.625%
Debt Instrument Redemption By Equity Offering Before August 1, 2021 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of principal amount redeemed	40.00%
Debt Instrument Redemption Period With Premium Before August 1, 2021 [Member]
Debt Instrument [Line Items]
Percentage of principal amount redeemed	100.00%

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail)	1 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2018USD ($)Franchised_Stores	Jul. 31, 2018USD ($)Franchised_Stores	Sep. 30, 2018USD ($)	Mar. 31, 2018USD ($)Franchised_StoresStores	Sep. 30, 2018USD ($)	Dec. 31, 2017
Business Acquisition [Line Items]
Reduction in intangible asset amortization expense, non-recurring			$ 2,638,000
Granmark [Member]
Business Acquisition [Line Items]
Business combination, acquisition percentage						85.00%
Business combination, percentage of remaining interest					15.00%
Business combination, period to acquire remaining interest					4 years
Liability recorded for the estimated purchase price of remaining interest to be acquired	$ 3,021,000		$ 3,021,000		$ 3,021,000
Print Appeal Inc [Member]
Business Acquisition [Line Items]
Business combination, acquisition percentage						60.00%
Business combination, percentage of remaining interest					40.00%
Business combination, period to acquire remaining interest					5 years
Estimated purchase price interest					$ 2,312,000
Maryland [Member]
Business Acquisition [Line Items]
Number of franchise stores acquired | Franchised_Stores				11
Total consideration amount				$ 14,000,000
TEXAS [Member]
Business Acquisition [Line Items]
Total consideration amount				$ 6,000,000
Number of independent stores to be acquired | Stores				11
Period which control over acquired stores				1 year
Pennsylvania [Member]
Business Acquisition [Line Items]
Number of franchise stores acquired | Franchised_Stores		16
Total consideration amount		$ 18,800,000
Minnesota, North Dakota and Texas [Member]
Business Acquisition [Line Items]
Number of franchise stores acquired | Franchised_Stores	21
Total consideration amount	$ 22,900,000

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Increase (decrease) in retained earnings	$ 397,452		$ 397,452			$ 372,596
Increase (decrease) in accounts receivables	171,428		171,428			140,980
Increase (decrease) in inventory	810,782		810,782			604,066
Increase (decrease) in accrued expense	201,509		201,509			176,609
Increase (decrease) in income tax payable						$ 45,568
Increase (decrease) in pre-tax income	(1,663)	$ 13,567	$ 33,888	$ 46,684
Short-term Contract with Customer [Member]
Disaggregation of Revenue [Line Items]
Contract with an original expected duration			One year or less
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Accounting Standards Update 2014-09 [Member]
Disaggregation of Revenue [Line Items]
Increase (decrease) in retained earnings					$ (78)
Increase (decrease) in accounts receivables					(141)
Increase (decrease) in inventory					11
Increase (decrease) in accrued expense					(26)
Increase (decrease) in deferred tax asset					28
Increase (decrease) in income tax payable					$ 2
Increase (decrease) in pre-tax income	$ (5)		$ 34
Retail [Member]
Disaggregation of Revenue [Line Items]
Revenue, information used to determine transaction price			The transaction price for the overwhelming majority of the Company’s retail sales is based on either: 1) the item’s stated price or 2) the stated price adjusted for the impact of a coupon which can only be applied to such transaction. To the extent that the Company charges customers for freight costs on e-commerce sales, the Company records such amounts in revenue.
Retail [Member] | Minimum [Member]
Disaggregation of Revenue [Line Items]
Royalty fee percentage			4.00%
Retail [Member] | Maximum [Member]
Disaggregation of Revenue [Line Items]
Royalty fee percentage			6.00%
Wholesale Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue, information used to allocate transaction price			The determination of the transaction price is straight-forward as it is fixed based on the contract and/or purchase order. However, a limited number of customers receive volume-based rebates. Additionally, certain customers receive small discounts for early payment (generally 1% of the transaction price).
Percentage of discount of transaction price on early payment			1.00%
Wholesale Segment [Member] | Minimum [Member]
Disaggregation of Revenue [Line Items]
Revenue recognition period	30 days		30 days
Wholesale Segment [Member] | Maximum [Member]
Disaggregation of Revenue [Line Items]
Revenue recognition period	120 days		120 days

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Total revenues	$ 553,046	$ 560,109	$ 1,621,881	$ 1,581,986
Retail [Member]
Disaggregation of Revenue [Line Items]
Total revenues	377,886	366,816	1,158,441	1,112,147
Wholesale Segment [Member]
Disaggregation of Revenue [Line Items]
Total revenues	175,160	193,293	463,440	469,839
Party City Stores [Member] | Retail [Member]
Disaggregation of Revenue [Line Items]
Net sales	336,355	324,766	1,043,422	993,652
Global E-commerce [Member] | Retail [Member]
Disaggregation of Revenue [Line Items]
Net sales	34,221	34,130	102,083	104,314
Temporary Stores [Member] | Retail [Member]
Disaggregation of Revenue [Line Items]
Net sales	5,104	5,161	5,104	5,161
Domestic [Member] | Wholesale Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	88,287	98,801	247,243	264,496
International [Member] | Wholesale Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	86,873	94,492	216,197	205,343
Net Sales [Member]
Disaggregation of Revenue [Line Items]
Net sales	550,840	557,350	1,614,049	1,572,966
Net Sales [Member] | Retail [Member]
Disaggregation of Revenue [Line Items]
Net sales	375,680	364,057	1,150,609	1,103,127
Royalties and Franchise Fees [Member]
Disaggregation of Revenue [Line Items]
Net sales	2,206	2,759	7,832	9,020
Royalties and Franchise Fees [Member] | Retail [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 2,206	$ 2,759	$ 7,832	$ 9,020

Cash, Cash Equivalents and Re_2

Cash, Cash Equivalents and Restricted Cash - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 48,274	$ 58,215	$ 54,408	$ 64,765
Net cash outflow	13,890	11,382
Cash and cash equivalents	48,097		54,291
Accounting Standards Update 2016-18 [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Net cash outflow		11,382
Previously Reported [Member] | Accounting Standards Update 2016-18 [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Net cash outflow		11,299
Prepaid Expenses and Other Current Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 177		$ 117
Cash [Member] | Accounting Standards Update 2016-18 [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash		$ 72		$ 155