EDGAR Filing Documents for 0001193125-18-103623

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:

SEC Accession No. 0001193125-18-103623

Filing Date

2018-04-02

Accepted

2018-03-30 20:06:45

Documents

129

Period of Report

2017-12-31

Document Format Files

Seq	Description	Document	Type	Size
1	10-K	d514795d10k.htm	10-K	1392416
2	EX-21	d514795dex21.htm	EX-21	2406
3	EX-23.1	d514795dex231.htm	EX-23.1	5886
4	EX-23.2	d514795dex232.htm	EX-23.2	2016
5	EX-31.1	d514795dex311.htm	EX-31.1	10386
6	EX-31.2	d514795dex312.htm	EX-31.2	10262
7	EX-32.1	d514795dex321.htm	EX-32.1	4017
8	EX-32.2	d514795dex322.htm	EX-32.2	4137
15	GRAPHIC	g514795g01i75.jpg	GRAPHIC	63134
16	GRAPHIC	g514795g09r41.jpg	GRAPHIC	52097
17	GRAPHIC	g514795g11o53.jpg	GRAPHIC	75118
18	GRAPHIC	g514795g23q83.jpg	GRAPHIC	102082
19	GRAPHIC	g514795g26a80.jpg	GRAPHIC	35254
20	GRAPHIC	g514795g40v20.jpg	GRAPHIC	44819
21	GRAPHIC	g514795g45a89.jpg	GRAPHIC	56492
22	GRAPHIC	g514795g61c73.jpg	GRAPHIC	57453
23	GRAPHIC	g514795g61u90.jpg	GRAPHIC	83171
24	GRAPHIC	g514795g74v01.jpg	GRAPHIC	42616
25	GRAPHIC	g514795g81j90.jpg	GRAPHIC	43899
26	GRAPHIC	g514795g86o64.jpg	GRAPHIC	96841
27	GRAPHIC	g514795g88m95.jpg	GRAPHIC	36657
28	GRAPHIC	g514795g90v05.jpg	GRAPHIC	68574
29	GRAPHIC	g514795g91u11.jpg	GRAPHIC	37767
30	GRAPHIC	g514795g92s19.jpg	GRAPHIC	46165
	Complete submission text file	0001193125-18-103623.txt		9139228

Data Files

Seq	Description	Document	Type	Size
9	XBRL INSTANCE DOCUMENT	alt-20171231.xml	EX-101.INS	1193178
10	XBRL TAXONOMY EXTENSION SCHEMA	alt-20171231.xsd	EX-101.SCH	89752
11	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE	alt-20171231_cal.xml	EX-101.CAL	123173
12	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE	alt-20171231_def.xml	EX-101.DEF	411661
13	XBRL TAXONOMY EXTENSION LABEL LINKBASE	alt-20171231_lab.xml	EX-101.LAB	786958
14	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE	alt-20171231_pre.xml	EX-101.PRE	612191

Mailing Address 19 FIRSTFIELD ROAD GAITHERSBURG MD 20878

Business Address 19 FIRSTFIELD ROAD GAITHERSBURG MD 20878 2406541450