Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 527,449	$ 535,746	$ 960,425	$ 962,553
Cost of sales	349,477	318,574	644,445	593,095
Gross profit	177,972	217,172	315,980	369,458
Selling , general and administrative expense	167,306	155,336	325,366	304,357
Loss on disposal of assets in international operations	0	0	0	3,211
Income (loss) from operations	10,666	61,836	(9,386)	61,890
Interest expense, net	24,184	23,116	47,579	40,330
Other (income), net	(1,800)	(1,300)	(2,003)	(873)
(Loss) income before income taxes	(11,718)	40,020	(54,962)	22,433
Income tax (benefit) expense	(173,891)	10,209	(190,246)	6,740
Net income	162,173	29,811	135,284	15,693
Less: Net income attributable to noncontrolling interests	0	0	0	(54)
Net income attributable to common shareholders of Party City Holdco Inc.	$ 162,173	$ 29,811	$ 135,284	$ 15,747
Net income per share attributable to common shareholders of Party City Holdco Inc. -Basic	$ 1.44	$ 0.27	$ 1.20	$ 0.14
Net income per share attributable to common shareholders of Party City Holdco Inc. -Diluted	$ 1.42	$ 0.26	$ 1.18	$ 0.14
Weighted-average number of common shares-Basic	112,632,860	111,340,295	112,519,950	111,128,822
Weighted-average number of common shares-Diluted	114,604,275	116,251,151	115,115,172	115,499,304
Dividends declared per share	$ 0	$ 0	$ 0	$ 0
Comprehensive income	$ 160,827	$ 30,761	$ 134,890	$ 51,742
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	(30)
Comprehensive income attributable to common shareholders of Party City Holdco Inc.	$ 160,827	$ 30,761	$ 134,890	$ 51,772