Basis of Reporting for Consolidated Financial Statements - Additional Information (Detail) - Peerless Propulsys [Member]	3 Months Ended
Mar. 31, 2016	Dec. 31, 2015
Basis Of Presentation And Principles Of Consolidation [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	60.00%
Percentage of ownership by parent in net income loss	80.00%
CECO Group Global Holdings LLC		100.00%

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant