Date Form Description PDF XBRL Pages
05/25/18 4 Statement of changes in beneficial ownership of securities PDF 2
05/23/18 4 Statement of changes in beneficial ownership of securities PDF 2
05/23/18 4 Statement of changes in beneficial ownership of securities PDF 2
05/23/18 4 Statement of changes in beneficial ownership of securities PDF 2
05/23/18 4 Statement of changes in beneficial ownership of securities PDF 2
05/21/18 SD Specialized Disclosure Report filed pursuant to Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act relating to the use of conflict minerals (Rule 13p-1)
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EX-1.01
 PDF 4
05/15/18 10-Q Quarterly report pursuant to Section 13 or 15(d)
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EX-31.1
EX-31.2
EX-32
EX-99.1
 PDF Document Table XBRL XAML 41
05/10/18 4 Statement of changes in beneficial ownership of securities PDF 2
04/11/18 DEF 14A Definitive proxy statements PDF 66
04/06/18 10-K Annual report pursuant to Section 13 and 15(d)
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EX-21
EX-23.1
EX-23.2
EX-31.1
EX-31.2
EX-32
 PDF Document Table XBRL XAML 66
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