Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jan. 31, 2014	Apr. 30, 2013
Current assets:
Cash and cash equivalents	$ 417,145	$ 123,801
Receivables, net of allowance for doubtful accounts of $4.3 million and $2.6 million, respectively	267,461	317,302
Income taxes receivable	25,003	25,871
Deferred income tax assets	79	49
Inventories (note 5)	124,564	105,794
Prepaid expenses	28,502	22,219
Other assets (note 6)	49,571	56,083
Assets, Current, Total	912,325	651,119
Property and equipment, net (note 3)	1,039,212	1,075,254
Investments	30,817	26,896
Intangible assets (note 7)	179,746	197,810
Goodwill	424,502	430,462
Restricted cash	22,689	29,639
Other assets (note 6)	547,150	439,789
Deferred income tax assets	10,782	10,752
Assets held for sale (note 4)	32,637	32,047
Total assets	3,199,860	2,893,768
Current liabilities:
Payables and accruals	375,648	420,406
Deferred revenue	31,855	27,652
Income taxes payable	45,627	48,073
Deferred income tax liabilities	522	618
Current facility secured by accounts receivable (note 2)	46,876	53,512
Other liabilities (note 8)	29,300	47,791
Current portion of long-term debt obligations (note 9)	132,792	2,138
Liabilities, Current, Total	662,620	600,190
Long-term debt obligations (note 9)	1,545,761	1,475,087
Deferred revenue	79,835	55,990
Other liabilities (note 8)	279,939	246,455
Deferred income tax liabilities	10,168	10,627
Total liabilities	2,578,323	2,388,349
Redeemable non-controlling interest (note 2)	(5,612)	(8,262)
Capital stock: Par value $0.0001; Authorized: 2,000,000,000; Issued: 46,519,484 and 77,519,484	8	5
Contributed surplus	2,007,445	1,696,066
Deficit	(1,241,879)	(1,092,555)
Accumulated other comprehensive loss	(138,425)	(89,835)
Shareholder's equity	627,149	513,681
Liabilities and Equity, Total	$ 3,199,860	$ 2,893,768