Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 28, 2013	Mar. 29, 2013
Significant Accounting Policies [Line Items]
Earnings from equity investment	$ 2,657	$ 2,700	$ 1,469
Reclassification of debt issuance costs from other assets		200
Reclassification from other assets to long term debt		$ 2,500
Laser Quantum
Significant Accounting Policies [Line Items]
Equity method investment ownership percentage	41.00%	41.00%		41.00%	25.00%
Net investment	$ 10,100	$ 8,000
Maximum
Significant Accounting Policies [Line Items]
Cash equivalents original maturity period	3 months
Maximum | Laser Products
Significant Accounting Policies [Line Items]
Standard warranty period	24 months
Maximum | Precision Motion
Significant Accounting Policies [Line Items]
Standard warranty period	24 months
Maximum | Vision Technologies
Significant Accounting Policies [Line Items]
Standard warranty period	36 months
Maximum | Buildings and improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	30 years
Maximum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	10 years
Minimum | Laser Products
Significant Accounting Policies [Line Items]
Standard warranty period	12 months
Minimum | Precision Motion
Significant Accounting Policies [Line Items]
Standard warranty period	12 months
Minimum | Vision Technologies
Significant Accounting Policies [Line Items]
Standard warranty period	12 months
Minimum | Buildings and improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	3 years
Minimum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	1 year