Other Income and Restructuring Costs - Additional Information (Details) $ in Thousands	12 Months Ended			24 Months Ended
	Dec. 31, 2016 USD ($) Employee	Jan. 02, 2016 USD ($) Employee	Jan. 03, 2015 USD ($) Employee	Dec. 31, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Gain on the sale of real estate	$ 350	$ (4)	$ 118
Proceeds from sale of real estate	428	30	242
Restructuring provision (reversal)		515
Restructuring and related cost incurred to date			805
Sweden
Restructuring Cost and Reserve [Line Items]
Gain on the sale of real estate	317
Proceeds from sale of real estate	368
Restructuring Plan 2015
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		344
Restructuring Plan 2015 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		344
Restructuring Plan 2015 | Facility-related closing costs
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		0
Restructuring Plan 2015 | Papermaking systems segment
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		$ 344
Restructuring Plan 2015 | Papermaking systems segment | Employee severance | Canada And Brazil
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated related to restructuring | Employee		25
Restructuring Plan 2014
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		$ 171	370
Restructuring Plan 2014 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		171	370
Restructuring Plan 2014 | Facility-related closing costs
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		0	0
Restructuring Plan 2014 | Papermaking systems segment
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)				$ 541
Restructuring Plan 2014 | Papermaking systems segment | Employee severance | Sweden
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		171	49
Restructuring and related cost incurred to date	$ 220
Number of positions eliminated related to restructuring | Employee	7
Restructuring Plan 2014 | Papermaking systems segment | Employee severance | BRAZIL
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)			$ 321
Number of positions eliminated related to restructuring | Employee			8
Restructuring Plans prior to 2014
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		0	$ 435
Restructuring Plans prior to 2014 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		0	(11)
Restructuring Plans prior to 2014 | Facility-related closing costs
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		$ 0	$ 446
Restructuring Plans prior to 2014 | Papermaking systems segment
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost incurred to date	$ 2,278
Restructuring Plans prior to 2014 | Papermaking systems segment | Employee severance | Sweden
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost incurred to date	$ 497
Number of positions eliminated related to restructuring | Employee	25
Restructuring Plans prior to 2014 | Papermaking systems segment | Employee severance | BRAZIL
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost incurred to date	$ 1,158
Number of positions eliminated related to restructuring | Employee	22
Restructuring Plans prior to 2014 | Papermaking systems segment | Facility-related closing costs
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)	$ 623