Annual report pursuant to Section 13 and 15(d)

Excess Lease Liability - Additional Information (Detail)

v2.4.1.9
Excess Lease Liability - Additional Information (Detail) (Subsequent Event, BMR-217TH Place LLC, USD $)
In Millions, unless otherwise specified
 1 Months Ended
Feb. 28, 2015
Restructuring Cost and Reserve [Line Items]  
Lease termination agreement, date of termination Mar. 01, 2015
Aggregate amount of funding received $ 20.0ogxi_FundingReceivableAggregateAmount
Termination Fee [Member]
  
Restructuring Cost and Reserve [Line Items]  
Lease termination agreement, fee payable 2.0us-gaap_LossOnContractTermination
/ us-gaap_CounterpartyNameAxis
= ogxi_BMR217THPlaceLLCMember
/ us-gaap_LeaseArrangementTypeAxis
= ogxi_TerminationFeeMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Contingent Fee [Member]
  
Restructuring Cost and Reserve [Line Items]  
Lease termination agreement, fee payable $ 1.3us-gaap_LossOnContractTermination
/ us-gaap_CounterpartyNameAxis
= ogxi_BMR217THPlaceLLCMember
/ us-gaap_LeaseArrangementTypeAxis
= ogxi_ContingentFeeMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember