Annual report pursuant to Section 13 and 15(d)

Excess Lease Liability - Additional Information (Detail)

v3.3.1.900
Excess Lease Liability - Additional Information (Detail)
 1 Months Ended
Feb. 28, 2015
USD ($)
Operating Leased Assets [Line Items]  
Lease termination agreement, additional fee payable $ 1,300,000
BMR-217TH Place LLC [Member]  
Operating Leased Assets [Line Items]  
Lease termination agreement, date of termination Mar. 01, 2015
BMR-217TH Place LLC [Member] | Termination Fee [Member]  
Operating Leased Assets [Line Items]  
Lease termination agreement, fee paid $ 2,000,000
Minimum [Member] | BMR-217TH Place LLC [Member]  
Operating Leased Assets [Line Items]  
Amount of funding to raise that would trigger payment of additional termination fee $ 20,000,000