TWO Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity Redeemable Preferred Stock (Details)

Stockholders' Equity Redeemable Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Jul. 31, 2018	Dec. 31, 2018	Dec. 31, 2016	Dec. 31, 2017
Class of Stock [Line Items]
Shares issued and outstanding		40,050,000		29,050,000
Preferred stock carrying value		$ 977,501
Preferred stock liquidation preference per share (in usd per share)		$ 25.00
Number of shares of stock issued during period (in shares)			30,301
Preferred stock par value per share (in usd per share)		$ 0.01		$ 0.01
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued and outstanding		5,750,000
Preferred stock carrying value		$ 138,872
Preferred stock dividend rate		8.125%
Preferred stock dividend variable rate spread		5.66%
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued and outstanding		11,500,000
Preferred stock carrying value		$ 278,094
Preferred stock dividend rate		7.625%
Preferred stock dividend variable rate spread		5.352%
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued and outstanding		11,800,000
Preferred stock carrying value		$ 285,584
Preferred stock dividend rate		7.25%
Preferred stock dividend variable rate spread		5.011%
Series D Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued and outstanding		3,000,000
Preferred stock carrying value		$ 74,964
Preferred stock dividend rate		7.75%
Number of shares of stock issued during period (in shares)	3,000,000
Preferred stock par value per share (in usd per share)		$ 0.01
Series E Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued and outstanding		8,000,000
Preferred stock carrying value		$ 199,987
Preferred stock dividend rate		7.50%
Number of shares of stock issued during period (in shares)	8,000,000
Preferred stock par value per share (in usd per share)		$ 0.01