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Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '12/1/2012 - 12/31/2012' is shorter (30 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '1/1/2013 - 3/31/2013' is shorter (89 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '4/1/2013 - 6/30/2013' is shorter (90 days) and has only 1 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '7/1/2013 - 9/30/2013' is shorter (91 days) and has only 1 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '10/1/2013 - 12/31/2013' is shorter (91 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '1/1/2014 - 3/31/2014' is shorter (89 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '4/1/2014 - 6/30/2014' is shorter (90 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '7/1/2014 - 9/30/2014' is shorter (91 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '10/1/2014 - 12/31/2014' is shorter (91 days) and has only 3 values, so it is being removed. Columns in Cash Flows statement 'Consolidated Statements of Cash Flows (USD $)' have maximum duration 365 days and at least 57 values. Shorter duration columns must have at least one fourth (14) as many values. Column '4/1/2012 - 4/27/2012' is shorter (26 days) and has only 2 values, so it is being removed. 'Monetary' elements on report '049 - Disclosure - Note 1 - Basis of Presentation (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '050 - Disclosure - Note 2- Liquidity and Capital Resources (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '051 - Disclosure - Note 3 - Significant Accounting Policies (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '052 - Disclosure - Note 4 - Divestiture (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '062 - Disclosure - Note 8 - Property, Equipment and Construction in Progress (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '068 - Disclosure - Note 10 - Restricted Cash and Performance Bonds (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '069 - Disclosure - Note 10 - Restricted Cash and Performance Bonds (Details) - Restricted Cash' had a mix of different decimal attribute values. 'Monetary' elements on report '072 - Disclosure - Note 12 - Debt Obligations (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '091 - Disclosure - Note 15 - Fair Value Measurements and Disclosures (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '101 - Disclosure - Note 20 - Income Tax (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '110 - Disclosure - Note 24 - Operating Leases and Purchase Obligations (Details)' had a mix of different decimal attribute values. Process Flow-Through: 001 - Statement - Consolidated Balance Sheets Process Flow-Through: Removing column 'Dec. 31, 2012' Process Flow-Through: Removing column 'Dec. 31, 2011' Process Flow-Through: 002 - Statement - Consolidated Balance Sheets (Parentheticals) Process Flow-Through: 003 - Statement - Consolidated Statements of Operations Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2014' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2014' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2014' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2014' Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2013' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2013' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2013' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2013' Process Flow-Through: 005 - Statement - Consolidated Statements of Cash Flows Process Flow-Through: 006 - Statement - Consolidated Statements of Cash Flows (Parentheticals) bpz-20141231.xml bpz-20141231.xsd bpz-20141231_cal.xml bpz-20141231_def.xml bpz-20141231_lab.xml bpz-20141231_pre.xml true true