Investors

SEC Filings

SEC Filings

Form	Description	Filing date	View
8-K	Report of unscheduled material events or corporate event	Jan 24, 2024	0000950170-24-007011.pdf 0000950170-24-007011.rtf 0000950170-24-007011.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML
8-K	Report of unscheduled material events or corporate event	Mar 19, 2024	0000950170-24-033476.pdf 0000950170-24-033476.rtf 0000950170-24-033476.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML
8-K	Report of unscheduled material events or corporate event	Mar 22, 2024	0000950170-24-035366.pdf 0000950170-24-035366.rtf 0000950170-24-035366.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML
8-K/A	Amendment to a previously filed 8-K	Oct 01, 2020	0001193125-20-261344.pdf 0001193125-20-261344.rtf 0001193125-20-261344.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML
8-K/A	Amendment to a previously filed 8-K	May 17, 2021	0001564590-21-028402.pdf 0001564590-21-028402.rtf 0001564590-21-028402.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML
ARS	An annual report to security holders	Apr 18, 2023	0000950170-23-013298.pdf 0000950170-23-013298.rtf View HTML
CORRESP	CORRESP	Jul 29, 2020	0001193125-20-202694.pdf 0001193125-20-202694.rtf 0001193125-20-202694.xls View HTML
CORRESP	CORRESP	Aug 12, 2020	0001193125-20-217150.pdf 0001193125-20-217150.rtf 0001193125-20-217150.xls View HTML
CORRESP	CORRESP	Aug 19, 2020	0001193125-20-224448.pdf 0001193125-20-224448.rtf 0001193125-20-224448.xls View HTML
CORRESP	CORRESP	May 19, 2021	0001193125-21-166585.pdf 0001193125-21-166585.rtf 0001193125-21-166585.xls View HTML

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