XML 103 R70.htm IDEA: XBRL DOCUMENT v3.21.2
Fair Value Measurements - Summary of Gross Holding Losses and Fair Value of Held-to-Maturity Securities (Parenthetical) (Detail)
11 Months Ended
Dec. 31, 2020
US Treasury Securities  
Schedule of Held-to-maturity Securities [Line Items]  
Held-To-Maturity Jan. 28, 2021