Financials & Filings Show all 2018 Q4 Form 10-K Annual Reports Title Documents 2017 Annual Report Add Files 2017 Annual Report 2.7 MB 2016 Annual Report Add Files 2016 Annual Report 7 MB Proxy Statements Filing date View Nov 30, 2018 View HTML 0001140361-18-044179.pdf 0001140361-18-044179.xls Apr 6, 2018 View HTML 0001140361-18-017524.pdf 0001140361-18-017524.xls Form 10-K Filing date View Feb 21, 2019 View HTML 0001140361-19-003638.pdf 0001140361-19-003638.xls EX-101.INS - XBRL INSTANCE DOCUMENT Mar 22, 2018 View HTML 0001140361-18-014681.pdf 0001140361-18-014681.xls EX-101.INS - XBRL INSTANCE DOCUMENT Form 10-Q Filing date View Nov 7, 2018 View HTML 0001140361-18-042642.pdf 0001140361-18-042642.xls EX-101.INS - XBRL INSTANCE DOCUMENT Aug 9, 2018 View HTML 0001140361-18-036025.pdf 0001140361-18-036025.xls EX-101.INS - XBRL INSTANCE DOCUMENT