Document and Entity Information - shares	3 Months Ended
	Dec. 31, 2018	Feb. 04, 2019
Document And Entity Information
Entity Registrant Name	Inspired Entertainment, Inc.
Entity Central Index Key	0001615063
Document Type	10-Q
Trading Symbol	INSE
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity's Reporting Status Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		21,494,513
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2019