Business Segment Information - Additional Information (Details)	6 Months Ended
Jun. 30, 2018 segment	Jun. 24, 2018 $ / shares
Segment Reporting [Abstract]
Number of reportable segments \| segment	2
Andritz \| Xerium Technologies, Inc.
Business Acquisition [Line Items]
Acquisition price (in usd per share) \| $ / shares		$ 13.50

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration