Consolidated Statements of Changes in Members' Equity (Parenthetical) (USD $)	12 Months Ended
Oct. 31, 2011	Oct. 31, 2010
Consolidated Statements of Changes in Members' Equity
Class A units (in units)	7,000,000	3,103,449
Class A units (in dollars per unit)	$ 0.50	$ 1.45

Represents the number of shares issued in an initial public offering or a secondary public offering by the reporting entity during the reporting period.

No definition available.

Name:	hlb_CapitalIssuanceSharesIssued
Namespace Prefix:	hlb_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration