Bristow Group Inc. Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Estimated Fair Value Of Other Financial Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, including current portion	$ 304,153us-gaap_DebtInstrumentFairValue	$ 309,544us-gaap_DebtInstrumentFairValue
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, including current portion	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, including current portion	300,014	320,099
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, including current portion	$ 0	$ 0