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Note 23 (Detail) - Condensed Consolidating Financial Statements - Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Net income (loss) $ (11,308) $ (18,265)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities 17,083 (24,857)
Net cash provided by (used in) operating activities 5,775 (43,122)
Net cash provided by (used in) investing activities 9,715 (1,272)
Net cash provided by (used in) financing activities (50,569) (36,657)
Net increase (decrease) in cash (35,079) (81,051)
Cash and cash equivalents balance, beginning of period 273,232 250,740
Cash and cash equivalents balance, end of period 238,153 169,689
Parent Company [Member]
    
Net income (loss) (11,308) 18,265
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities 5,954 (33,435)
Net cash provided by (used in) operating activities (5,354) (15,170)
Intercompany investing and financing activities – net 5,354 15,170
Subsidiary Issuer [Member]
    
Net income (loss) (779,715) 10,047
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities (1,629) 14,424
Net cash provided by (used in) operating activities (781,344) 24,471
Net cash provided by (used in) investing activities 259  
Net cash provided by (used in) financing activities (1,200) (39,173)
Intercompany investing and financing activities – net 768,909 (13,424)
Net increase (decrease) in cash (13,376) (28,126)
Cash and cash equivalents balance, beginning of period 197,097 112,122
Cash and cash equivalents balance, end of period 183,721 83,996
Guarantor Subsidiaries [Member]
    
Net income (loss) 743,683 (39,549)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities 8,947 23,191
Net cash provided by (used in) operating activities 752,630 (16,358)
Net cash provided by (used in) investing activities 5,722 (102)
Net cash provided by (used in) financing activities 9,225 3,201
Intercompany investing and financing activities – net (771,290) 14,360
Net increase (decrease) in cash (3,713) 1,101
Cash and cash equivalents balance, beginning of period (2,017) (4,989)
Cash and cash equivalents balance, end of period (5,730) (3,888)
Non-Guarantor Subsidiaries [Member]
    
Net income (loss) 8,447 2,630
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities 31,396 (38,695)
Net cash provided by (used in) operating activities 39,843 (36,065)
Net cash provided by (used in) investing activities 3,734 (1,170)
Net cash provided by (used in) financing activities (58,594) (685)
Intercompany investing and financing activities – net (2,973) (16,106)
Net increase (decrease) in cash (17,990) (54,026)
Cash and cash equivalents balance, beginning of period 78,152 143,607
Cash and cash equivalents balance, end of period 60,162 89,581
Consolidation, Eliminations [Member]
    
Net income (loss) 27,585 (9,658)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities $ (27,585) $ 9,658