Earnings Per OP Unit of MAALP (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share, Basic [Abstract]
Dividends, Preferred Stock, Cash			$ 0	$ 0
Limited Partner [Member]
Earnings Per Unit Disclosure
Weighted average common units - basic		82,661	79,361	79,188
Weighted Average Number Diluted Shares Outstanding Adjustment		298	0	0
Weighted average common shares - diluted		82,959	79,361	79,188
Earnings Per Share, Basic [Abstract]
Dividends, Preferred Stock, Cash		$ 924	$ 0	$ 0
Limited Partner [Member] | Calculation of Basic Earnings Per Unit [Member]
Earnings Per Share, Basic [Abstract]
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		224,402	350,745	150,946
Income from continuing operations allocated to unvested restricted shares		574	772	278
Dividends, Preferred Stock, Cash		(307)	0	0
Income from continuing operations available for common unitholders, adjusted		223,521	349,973	150,668
Income from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		0	0	5,331
Income from discontinued operations allocated to unvested restricted shares		0	0	(10)
Income from discontinued operations available for common unitholders, adjusted		$ 0	$ 0	$ 5,321
Earnings per unit - basic		$ 2.70	$ 4.41	$ 1.97
Limited Partner [Member] | Calculation of Diluted Earnings Per Unit [Member]
Earnings Per Share, Basic [Abstract]
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 224,402	$ 350,745	$ 150,946
Income from continuing operations allocated to unvested restricted shares		0	772	278
Dividends, Preferred Stock, Cash		(307)	0	0
Income from continuing operations available for common unitholders, adjusted		224,095	349,973	150,668
Income from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		0	0	5,331
Income from discontinued operations allocated to unvested restricted shares		0	0	(10)
Income from discontinued operations available for common unitholders, adjusted		$ 0	$ 0	$ 5,321
Diluted Earnings Per Unit		$ 2.70	$ 4.41	$ 1.97
Limited Partner [Member] | Restricted Stock [Member]
Earnings Per Share, Basic [Abstract]
Effect of dilutive securities (units)	[1]	100

[1] 0.1 million potentially dilutive securities and their related income are not included in the diluted earnings per unit calculations as they are not dilutive.