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Debt - Additional Information (Detail) - Boulder Road LLC [Member] - Westside Boulder, LLC. [Member] - Loan Agreement [Member] - Great Western Bank [Member] - Mortgage Loan [Member]
$ in Millions
Dec. 28, 2020
USD ($)
Debt Instrument [Line Items]  
Loan principal amount $ 13
Interest rate 3.75%
Debt instrument, maturity date Dec. 28, 2025
Percentage of line of credit proceeds 50.00%
Percentage of line of credit monthly installments 50.00%