Accrual for Loss Contracts Related to Service (Details) $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($)
Contractors [Abstract]
Beginning balance	$ 10,050
Reduction for losses realized	(1,748)
Ending balance	$ 8,302

Provision for loss recognized in the current period on contracts.

No definition available.

Name:	plug_ProvisionForLossContracts
Namespace Prefix:	plug_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant