TWO Quarterly report pursuant to Section 13 or 15(d)

Restructuring Charges (Details) $ in Thousands	3 Months Ended		6 Months Ended	7 Months Ended	9 Months Ended		12 Months Ended
Restructuring Charges (Details) $ in Thousands	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Aug. 14, 2020 numberOfPositions	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Factor by which the average annual base management fee is multiplied for purposes of determining the management agreement termination fee \| numberOfPositions				3
Period over which the average annual base management fee is calculated for purposes of determining the management agreement termination fee				24 months
Restructuring charges	$ 0	$ (139,788)			$ 0	$ 6,000	$ 5,700
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 139,800