DEBT AND OTHER OBLIGATIONS - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2011	Apr. 04, 2011
Debt Disclosure [Line Items]
Credit facilities, agreement date	2011-04-04
Short Term Loan Facility
Debt Disclosure [Line Items]
Credit facilities, maximum borrowing capacity		$ 12.0
Credit facilities, interest rate margin over SIBOR		1.50%
Revolving Credit Facility
Debt Disclosure [Line Items]
Credit facilities, maximum borrowing capacity		$ 8.0
Credit facilities, maturity date	2013-09-10
Credit facilities, interest rate margin over SIBOR		2.50%
Convertible Notes Payable
Debt Disclosure [Line Items]
Convertible Subordinated Notes stated interest rate	0.875%
Convertible subordinated notes, initial conversion rate per $1,000 of principal	69.6621
Convertible subordinated notes, initial conversion price	14.355