Business Combinations - Additional Information (Details) - USD ($)						2 Months Ended	3 Months Ended	12 Months Ended
	May 24, 2016	Dec. 18, 2015	Nov. 09, 2015	Feb. 19, 2015	Mar. 14, 2014	Dec. 31, 2015	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill						$ 103,456,000		$ 108,128,000	$ 103,456,000
Future contingent consideration						3,889,000		2,381,000	3,889,000
Earn-out Agreement
Business Acquisition [Line Items]
Recognized acquisition costs								2,500,000	(200,000)	$ 600,000
Reach Technology Inc.
Business Acquisition [Line Items]
Membership interests acquired	100.00%
Total purchase price	$ 9,380,000
Goodwill	4,715,000
Intangible assets	3,953,000
Goodwill and intangible assets expected to be deductible for tax purposes	$ 0
Revenues								5,600,000
Income (loss) from continuing operations before income taxes								(600,000)
Reach Technology Inc. | Earn-out Agreement
Business Acquisition [Line Items]
Recognized acquisition costs								1,200,000
Skyetek Inc.
Business Acquisition [Line Items]
Total purchase price		$ 2,800,000
Net cash used for acquisition of business		2,600,000
Future contingent consideration		200,000
Undiscounted range of outcomes, minimum		0
Undiscounted range of outcomes, maximum		$ 300,000
Lincoln Laser Company
Business Acquisition [Line Items]
Total purchase price			$ 12,100,000
Revenues						1,900,000
Income (loss) from continuing operations before income taxes						(300,000)
Net cash used for acquisition of business			9,800,000
Future contingent consideration			2,300,000
Undiscounted range of outcomes, minimum			0
Undiscounted range of outcomes, maximum			$ 6,000,000
Lincoln Laser Company | Scenario, Forecast
Business Acquisition [Line Items]
Contingent consideration payment							$ 1,400,000
Applimotion Inc.
Business Acquisition [Line Items]
Membership interests acquired				100.00%
Total purchase price				$ 14,000,000
Revenues									14,000,000
Income (loss) from continuing operations before income taxes									1,000,000
Net cash used for acquisition of business				13,000,000
Future contingent consideration				1,000,000
Undiscounted range of outcomes, minimum				0
Undiscounted range of outcomes, maximum				$ 4,000,000
Skyetek, Lincoln Laser and Applimotion
Business Acquisition [Line Items]
Total purchase price									28,940,000
Goodwill						12,668,000			12,668,000
Intangible assets						11,370,000			11,370,000
Goodwill and intangible assets expected to be deductible for tax purposes						10,300,000			10,300,000
Future contingent consideration						$ 3,459,000			3,459,000
Total purchase price, net of cash acquired									25,481,000
JADAK Acquisition
Business Acquisition [Line Items]
Membership interests acquired					100.00%
Goodwill					$ 44,584,000
Intangible assets					40,250,000
Goodwill and intangible assets expected to be deductible for tax purposes					61,800,000
Revenues										45,400,000
Income (loss) from continuing operations before income taxes										(2,700,000)
Total purchase price, net of cash acquired					$ 93,656,000
JADAK, LLC
Business Acquisition [Line Items]
Membership interests acquired					100.00%
JADAK Technologies, Inc
Business Acquisition [Line Items]
Membership interests acquired					100.00%
Advanced Data Capture Corporation
Business Acquisition [Line Items]
Membership interests acquired					100.00%
Reach, Skyetek, Lincoln Laser, Applimotion and JADAK
Business Acquisition [Line Items]
Recognized acquisition costs								$ 200,000	$ 900,000	$ 700,000