Financing Arrangements - Assumed Business Combination Debt (Details) - USD ($) $ in Thousands		12 Months Ended
		Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2015
Debt Instrument, Increase (Decrease) [Roll Forward]
Debt outstanding beginning balance		$ 0	$ 0	$ 0
Additional borrowings	[1]			11,989
Proceeds from Lines of Credit		0	0	2,127
Repayments of Debt				14,116
Debt outstanding ending balance		0	0	0
Line of Credit [Member] | Integra Plastics [Member]
Debt Instrument, Increase (Decrease) [Roll Forward]
Line of credit, beginning balance		0	0	0
Additional borrowings	[1]			1,465
Proceeds from Lines of Credit				2,127
Repayments of Lines of Credit				3,592
Line of credit, ending balance		0	0	0
Long term notes [Member] | Integra Plastics [Member]
Debt Instrument, Increase (Decrease) [Roll Forward]
Long term notes, beginning balance		0	0	0
Additional borrowings	[1]			9,876
Proceeds from Notes Payable				0
Repayments of Notes Payable				9,876
Long term notes, ending balance		0	0	0
Notes with former owners and others [Member] | SBG Innovatiie and affiliate [Member]
Debt Instrument, Increase (Decrease) [Roll Forward]
Notes with former owners and others, beginning balance		0	0	0
Additional borrowings	[1]			648
Proceeds from Notes Payable				0
Repayments of Notes Payable				648
Notes with former owners and others, ending balance		$ 0	$ 0	$ 0

[1] The line of credit and long-term notes were assumed in the Integra business combination. The notes with former owners and others were assumed in the SBG business combination.