Bristow Group Inc. Annual report pursuant to Section 13 and 15(d)

SEGMENT INFORMATION, MAJOR CUSTOMERS AND GEOGRAPHICAL DATA Schedule of Revenue from External Customers and Long-Lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues	$ 57,531	$ 61,385	$ 57,878	$ 54,527	$ 56,289	$ 65,006	$ 63,351	$ 62,582	$ 231,321	$ 247,228	$ 281,837
Net property and equipment	673,914				821,809				673,914	821,809
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues									152,187	171,121	222,465
Net property and equipment	533,800				578,900				533,800	578,900
Latin America and the Caribbean
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues									68,936	64,007	40,420
Net property and equipment	120,152				147,828				120,152	147,828
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues									5,029	5,924	10,582
Net property and equipment	6,697				76,575				6,697	76,575
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating revenues									5,169	6,176	$ 8,370
Net property and equipment	$ 13,265				$ 18,506				$ 13,265	$ 18,506