Represents the net book value of the property, plant, and equipment associated with a financing obligation.

No definition available.

Name:	bry_FinancingObligationPropertyPlantandEquipmentNet
Namespace Prefix:	bry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Commitments and Contingencies (Details) (East Texas, USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2009	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
East Texas
E. Texas Gathering System
Proceeds from gas gathering system, financing obligation	$ 18.4
Net book value of property	16.7
E. Texas gathering agreements, total cost incurred		$ 0.5	$ 0.6	$ 1.0	$ 1.4