Inventory (Details Narrative) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 24, 2016
Inventory Disclosure [Abstract]
Reserves for excess and slow-moving inventory	$ 419	$ 469

It included in component parts are reserves for excess and slow-moving inventory.

No definition available.

Name:	inse_InventoryPartsAndComponentsReservesForExcessAndSlowmovingInventory
Namespace Prefix:	inse_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant