Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001586300 (http://www.sec.gov/CIK)

Segment Reporting [Abstract]	Period [Axis]
	2015-05-01 - 2016-04-30
Segment Reporting [Abstract]
Summary of Consolidated Financial Statement by Segment	For the year ended April 30, 2014   Helicopter services   Heli-One   Corporate and other   Inter-segment eliminations   Consolidated Revenue from external customers $ 1,617,708   $ 147,271   $ —   $ —   $ 1,764,979 Add: Inter-segment revenues —   159,906   —   (159,906 )   — Total revenue 1,617,708   307,177   —   (159,906 )   1,764,979 Direct costs (i) (1,110,957 )   (277,959 )   —   156,772   (1,232,144 ) Earnings from equity accounted investees 7,240   —   —   —   7,240 General and administration costs —   —   (95,087 )   —   (95,087 ) Adjusted EBITDAR (ii) 513,991   29,218   (95,087 )   (3,134 )   444,988 Helicopter lease and associated costs (227,893 )   —   —   —   (227,893 ) Depreciation                 (144,573 ) Asset impairments (note 4)                 (25,933 ) Loss on disposal of assets                 (6,631 ) Operating income                 39,958 Interest on long-term debt                 (153,222 ) Foreign exchange loss                 (6,028 ) Other financing charges                 (23,253 ) Income tax expense                 (28,374 ) Net loss                 $ (170,919 )   (i) Direct costs in the segment information presented excludes helicopter lease and associated costs. In the consolidated statements of operations these costs are combined. (ii) Adjusted EBITDAR is defined as earnings before interest, taxes, depreciation, amortization, helicopter lease and associated costs, restructuring expense, asset impairments, gain (loss) on disposal of assets, foreign exchange gain (loss) and other financing income (charges) or total revenue plus earnings from equity accounted investees less direct costs, excluding helicopter lease and associated costs, and general and administration costs.   For the year ended April 30, 2015       Helicopter services   Heli-One   Corporate and other   Inter-segment eliminations   Consolidated Revenue from external customers $ 1,557,319   $ 150,380   $ —   $ —   $ 1,707,699 Add: Inter-segment revenues —   107,571   —   (107,571 )   — Total revenue 1,557,319   257,951   —   (107,571 )   1,707,699 Direct costs (i) (1,051,911 )   (235,417 )   —   105,544   (1,181,784 ) Earnings from equity accounted investees 11,069   —   —   —   11,069 General and administration costs —   —   (83,857 )   —   (83,857 ) Adjusted EBITDAR (ii) 516,477   22,534   (83,857 )   (2,027 )   453,127 Helicopter lease and associated costs (262,748 )   —   —   —   (262,748 ) Depreciation                 (143,653 ) Restructuring expense (note 8)                 (80,347 ) Asset impairments (note 4)                 (553,650 ) Loss on disposal of assets                 (13,407 ) Operating loss                 (600,678 ) Interest on long-term debt                 (126,481 ) Foreign exchange loss                 (25,153 ) Other financing charges                 (17,841 ) Income tax expense                 (24,607 ) Net loss                 $ (794,760 )   (i) Direct costs in the segment information presented excludes helicopter lease and associated costs. In the consolidated statements of operations these costs are combined. (ii) Adjusted EBITDAR is defined as earnings before interest, taxes, depreciation, amortization, helicopter lease and associated costs, restructuring expense, asset impairments, gain (loss) on disposal of assets, foreign exchange gain (loss) and other financing income (charges) or total revenue plus earnings from equity accounted investees less direct costs, excluding helicopter lease and associated costs, and general and administration costs.   For the year ended April 30, 2016   Helicopter services   Heli-One   Corporate and other   Inter-segment eliminations   Consolidated Revenue from external customers $ 1,233,125   $ 149,364   $ —   $ —   $ 1,382,489 Add: Inter-segment revenues —   88,809   —   (88,809 )   — Total revenue 1,233,125   238,173   —   (88,809 )   1,382,489 Direct costs (i) (759,936 )   (210,653 )   —   84,763   (885,826 ) Earnings from equity accounted investees 6,375   —   —   —   6,375 General and administration costs —   —   (71,480 )   —   (71,480 ) Adjusted EBITDAR (ii) 479,564   27,520   (71,480 )   (4,046 )   431,558 Helicopter lease and associated costs (249,750 )   —   —   —   (249,750 ) Depreciation                 (162,150 ) Restructuring expense (note 8)                 (94,691 ) Asset impairments (note 4)                 (225,354 ) Loss on disposal of assets                 (2,795 ) Operating loss                 (303,182 ) Interest on long-term debt                 (116,335 ) Foreign exchange loss                 (12,402 ) Other financing income                 3,639 Income tax expense                 (9,506 ) Net loss                 $ (437,786 )   (i) Direct costs in the segment information presented excludes helicopter lease and associated costs. In the consolidated statements of operations these costs are combined. (ii) Adjusted EBITDAR is defined as earnings before interest, taxes, depreciation, amortization, helicopter lease and associated costs, restructuring expense, asset impairments, gain (loss) on disposal of assets, foreign exchange gain (loss) and other financing income (charges) or total revenue plus earnings from equity accounted investees less direct costs, excluding helicopter lease and associated costs, and general and administration costs.
Revenue by Geographic Area	The Company’s revenues by geographic location are as follows:   Revenue   For the year ended   April 30, 2014   April 30, 2015 April 30, 2016 Norway $ 520,279   $ 479,254   $ 410,555 United Kingdom 282,919   274,263   208,591 Australia 249,996   251,176   201,815 Brazil 264,815   275,806   216,885 Asia 94,172   75,122   58,334 Other European Countries 213,475   198,020   181,358 Other Countries 139,323   154,058   104,951 Total $ 1,764,979   $ 1,707,699   $ 1,382,489
Property and Equipment and Goodwill by Geographic Area	The Company’s property and equipment by geographic location is as follows:   Property and equipment   April 30, 2015   April 30, 2016 Norway $ 462,021   $ 399,775 United Kingdom 52,335   85,343 Australia 151,376   117,389 Brazil 61,268   86,573 Canada 98,715   92,728 Asia 802   481 Other European Countries 44,130   114,024 Other Countries 80,907   71,306 Total $ 951,554   $ 967,619