Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Revenue	$ 270,436	$ 375,937
Operating expenses:
Direct costs	(246,861)	(314,170)
Earnings from equity accounted investees	261	1,433
General and administration costs	(15,428)	(16,356)
Depreciation	(35,698)	(40,281)
Restructuring expense	(2,405)	(19,379)
Loss on disposal of assets	(1,125)	(987)
Operating expenses:	(301,256)	(389,740)
Operating loss	(30,820)	(13,803)
Interest on debt obligations	(8,591)	(26,946)
Foreign exchange loss	(18,432)	(10,079)
Other financing income	7,500	10,094
Reorganization items, net	(785,390)	0
Loss before income tax	(835,733)	(40,734)
Income tax expense	(59)	(5,908)
Net loss	(835,792)	(46,642)
Net earnings (loss) attributable to:
Controlling interest	(835,349)	(53,362)
Non-controlling interests	(443)	6,720
Net loss	(835,792)	(46,642)
Net loss attributable to controlling interest	(835,349)	(53,362)
Redeemable convertible preferred share dividends including cumulative effect of dividends in arrears of $0.2 million and $0.8 million		(13,112)
Adjustment of redeemable non-controlling interest to redemption amount	72	16,376
Net loss available to common stockholders	$ (836,061)	$ (50,310)
Net loss per ordinary share available to common stockholders - basic and diluted
Net loss per ordinary share available to common stockholders - basic and diluted (in dollars per share)	$ (307.19)	$ (18.55)
Weighted average number of ordinary shares outstanding - basic and diluted (shares)	2,721,638	2,712,527
Redeemable Convertible Preferred Stock
Net earnings (loss) attributable to:
Redeemable convertible preferred share dividends including cumulative effect of dividends in arrears of $0.2 million and $0.8 million	$ (784)	$ (13,324)