Condensed Consolidated Statements of Stockholders' Deficiency (Parenthetical) - $ / shares		3 Months Ended		6 Months Ended
	Jan. 01, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Distributions and dividends on common stock (in dollars per share)		$ 0.20	$ 0.38	$ 0.40	$ 0.76
Accounting Standards Update 2016-13
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Accounting Standards Update 2017-04
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201704Member