Note 23 - Financial Information of Subsidiary Issuer and Subsidiary Guarantors (Details) - Condensed Consolidating Financial Statements - Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Cash flows from operating activities:
Net income (loss)	$ (32,425)	$ (9,990)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities	(153,681)	(5,930)
Net cash provided by (used in) operating activities	(186,106)	(15,920)
Net cash provided by (used in) investing activities	5,728	17,674
Net cash provided by (used in) financing activities	96,406	(30,124)
Net (decrease) in cash	(83,972)	(28,370)
Cash and cash equivalents balance, beginning of period	329,204	273,232
Cash and cash equivalents balance, end of period	245,232	244,862
Consolidation, Eliminations [Member]
Cash flows from operating activities:
Net income (loss)	34,739	31,833
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities	(34,739)	(31,833)
Parent Company [Member]
Cash flows from operating activities:
Net income (loss)	(32,425)	(9,990)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities	(1,140)	14,384
Net cash provided by (used in) operating activities	(33,565)	4,394
Intercompany investing and financing activities – net	33,565	(4,394)
Subsidiary Issuer [Member]
Cash flows from operating activities:
Net income (loss)	(42,719)	(812,119)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities	9,969	773,776
Net cash provided by (used in) operating activities	(32,750)	(38,343)
Net cash provided by (used in) investing activities	76	242
Net cash provided by (used in) financing activities	120,553	(2,169)
Intercompany investing and financing activities – net	(173,351)	28,338
Net (decrease) in cash	(85,472)	(11,932)
Cash and cash equivalents balance, beginning of period	243,470	197,097
Cash and cash equivalents balance, end of period	157,998	185,165
Guarantor Subsidiaries [Member]
Cash flows from operating activities:
Net income (loss)	(18,102)	758,315
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities	(172,179)	(773,952)
Net cash provided by (used in) operating activities	(190,281)	(15,637)
Net cash provided by (used in) investing activities	664	12,033
Net cash provided by (used in) financing activities	39,646	20,087
Intercompany investing and financing activities – net	151,533	(17,970)
Net (decrease) in cash	1,562	(1,487)
Cash and cash equivalents balance, beginning of period	(6,479)	(2,017)
Cash and cash equivalents balance, end of period	(4,917)	(3,504)
Non-Guarantor Subsidiaries [Member]
Cash flows from operating activities:
Net income (loss)	26,082	21,971
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities	44,408	11,695
Net cash provided by (used in) operating activities	70,490	33,666
Net cash provided by (used in) investing activities	4,988	5,399
Net cash provided by (used in) financing activities	(63,793)	(48,042)
Intercompany investing and financing activities – net	(11,747)	(5,974)
Net (decrease) in cash	(62)	(14,951)
Cash and cash equivalents balance, beginning of period	92,213	78,152
Cash and cash equivalents balance, end of period	$ 92,151	$ 63,201