Annual report pursuant to Section 13 and 15(d)

Equity Transactions - Schedule of Cash Distributions Declared and Paid (Detail)

v3.20.4
Equity Transactions - Schedule of Cash Distributions Declared and Paid (Detail)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2020
USD ($)
$ / shares
Dividend Payment One [Member]  
Dividends Payable [Line Items]  
Announcement Date Mar. 10, 2020
Payment Date Mar. 31, 2020
Amount Per Share | $ / shares $ 0.0250
Cash Distributed | $ $ 667
Dividend Payment Two [Member]  
Dividends Payable [Line Items]  
Announcement Date Dec. 10, 2019
Payment Date Dec. 30, 2019
Amount Per Share | $ / shares $ 0.0250
Cash Distributed | $ $ 667
Dividend Payment Three [Member]  
Dividends Payable [Line Items]  
Announcement Date Sep. 11, 2019
Payment Date Sep. 30, 2019
Amount Per Share | $ / shares $ 0.0650
Cash Distributed | $ $ 1,730
Dividend Payment Four [Member]  
Dividends Payable [Line Items]  
Announcement Date May 14, 2019
Payment Date Jun. 28, 2019
Amount Per Share | $ / shares $ 0.0650
Cash Distributed | $ $ 1,728
Dividend Payment Five [Member]  
Dividends Payable [Line Items]  
Announcement Date Mar. 07, 2019
Payment Date Mar. 29, 2019
Amount Per Share | $ / shares $ 0.0650
Cash Distributed | $ $ 1,702