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Equity - At-the-Market (ATM) Program (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	19 Months Ended
	Sep. 30, 2015	Mar. 31, 2016	Mar. 31, 2017
Procceds from At-the-Market (ATM) program		$ 30,547
ATM
Shares authorized	12,000,000
Share issuances, net of costs (in shares)		500,000	3,493,441
Procceds from At-the-Market (ATM) program		$ 30,500	$ 203,100

X

- Definition

At The Market Equity Distribution Program, Authorized Shares The number of shares authorized by an entity's Board of Directors under their At-the-market equity distribution program.

+ References

No definition available.

+ Details

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X

- Definition

The cash inflow from the At-the-market stock purchase program.

+ References

No definition available.

+ Details

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X

- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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