Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (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, 2020	$ 50,521	$ 1,373	$ 971,972	$ (565,457)	$ (29,916)	$ 377,972	$ (327,182)	$ 50,790	$ (269)
Net income	15,693			15,747		15,747		15,747	(54)
Stock-based compensation	2,887		2,887			2,887		2,887
Warrant exercise		4	(4)
Disposed non-controlling interest	(487)								(487)
Treasury stock purchases	(212)						(212)	(212)
Exercise of stock options	3,322	6	3,316			3,322		3,322
Foreign currency adjustments	37,397		(4)	17	37,360	37,373		37,373	24
Impact of foreign exchange contracts, net	(1,348)				(1,348)	(1,348)		(1,348)
Balance at Jun. 30, 2021	107,773	1,383	978,167	(549,693)	6,096	435,953	(327,394)	108,559	(786)
Balance at Mar. 31, 2021	74,894	1,383	976,037	(579,486)	5,134	403,068	(327,388)	75,680	(786)
Net income	29,811			29,811		29,811		29,811
Stock-based compensation	1,657		1,657			1,657		1,657
Treasury stock purchases	(6)						(6)	(6)
Exercise of stock options	467		467			467		467
Foreign currency adjustments	950		6	(18)	962	950		950
Balance at Jun. 30, 2021	107,773	1,383	978,167	(549,693)	6,096	435,953	(327,394)	108,559	$ (786)
Balance at Dec. 31, 2021	82,714	1,384	982,307	(571,985)	3,541	415,247	(332,533)	82,714
Net income	135,284			135,284		135,284		135,284
Stock-based compensation	3,977		3,977			3,977		3,977
Treasury stock purchases	(1,605)						(1,605)	(1,605)
Foreign currency adjustments	(394)		23		(417)	(394)		(394)
Balance at Jun. 30, 2022	219,976	1,384	986,307	(436,701)	3,124	554,114	(334,138)	219,976
Balance at Mar. 31, 2022	57,757	1,384	984,060	(598,874)	4,473	391,043	(333,286)	57,757
Net income	162,173			162,173		162,173		162,173
Stock-based compensation	2,244		2,244			2,244		2,244
Treasury stock purchases	(852)						(852)	(852)
Foreign currency adjustments	(1,346)		3		(1,349)	(1,346)		(1,346)
Balance at Jun. 30, 2022	$ 219,976	$ 1,384	$ 986,307	$ (436,701)	$ 3,124	$ 554,114	$ (334,138)	$ 219,976