Non-controlling Interest - Distributions Paid or Payable (Details) - USD ($) $ in Thousands		3 Months Ended
	May 02, 2018	Mar. 31, 2018	Mar. 31, 2017
Dividends Payable [Line Items]
Distributions paid or payable to or on behalf of non-controlling unitholders		$ 4,212	$ 5,849
Distributions declared to non-controlling unitholders	$ 2,500
Tax and other distributions
Dividends Payable [Line Items]
Distributions paid or payable to or on behalf of non-controlling unitholders		1,700	3,588
Dividend distributions
Dividends Payable [Line Items]
Distributions paid or payable to or on behalf of non-controlling unitholders		$ 2,512	$ 2,261