Earnings Per OP Unit of MAALP Statement (details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share Disclosure [Line Items]
Dividends, Preferred Stock, Cash		$ 0
Limited Partner [Member]
Earnings Per Share Disclosure [Line Items]
Weighted average common units - basic	117,557	75,249
Effect of dilutive securities	307	240
Weighted average common shares - diluted	117,864	75,489
Dividends, Preferred Stock, Cash	$ (922)	$ 0
Limited Partner [Member] \| Calculation of Basic Earnings Per Unit [Member]
Earnings Per Share Disclosure [Line Items]
Income from continuing operations	43,416	45,808
Income from continuing operations allocated to unvested restricted shares	(73)	(110)
Dividends, Preferred Stock, Cash	922	0
Income from continuing operations available for common unitholders, adjusted	$ 42,421	$ 45,698
Earnings per unit - basic	$ 0.36	$ 0.61
Limited Partner [Member] \| Calculation of Diluted Earnings Per Unit [Member]
Earnings Per Share Disclosure [Line Items]
Income from continuing operations	$ 43,416	$ 45,808
Dividends, Preferred Stock, Cash	922	0
Income from continuing operations available for common unitholders, adjusted	$ 42,494	$ 45,808
Earnings per unit - diluted	$ 0.36	$ 0.61

Adjusted Income (Loss) from Continuing Operations Available for Common Unitholders

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- Definition

Basic Earnings Per Unit

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- Definition

Diluted Earnings Per Unit

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- Definition

Earnings Per Share Disclosure [Line Items]

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- Definition

Income from continuing operations allocated to unvested restricted shares

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- Definition

Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest

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- Definition

Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

Reference 2: 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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- Definition

The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1505-109256

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

The average number of limited partnership and general partnership units issued and outstanding that are used in calculating basic and diluted earnings per limited partnership and general partnership unit.

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