CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Dec. 31, 2011
Dividends declared but not paid	$ 2,661

Represents dividends declared but not paid, and hence, excluded from condensed consolidated statements of cash flows.

No definition available.

Name:	acet_DividendsDeclaredNotPaid
Namespace Prefix:	acet_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration