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

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended				6 Months Ended
	Jul. 14, 2021	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Subsequent Event [Line Items]
Issuance of stock, net of offering costs		$ 93	$ 99	$ 95	$ 142
Common Stock [Member]
Subsequent Event [Line Items]
Number of shares of stock issued during period (in shares)						27,018	36,761
Subsequent Event [Member]
Subsequent Event [Line Items]
Days within which shares may be purchased by underwriters	30 days
Subsequent Event [Member] \| Common Stock [Member]
Subsequent Event [Line Items]
Number of shares of stock issued during period (in shares)	40,000,000
Price per share of common stock issued during period (in usd per share)	$ 6.42
Issuance of stock, net of offering costs	$ 256,500
Subsequent Event [Member] \| Common Stock [Member] \| Over-Allotment Option [Member]
Subsequent Event [Line Items]
Number of shares of stock issued during period (in shares)	6,000,000