Purchase Of Non-Controlling Interests (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Mar. 31, 2011
Noncontrolling Interest [Abstract]
Value of remaining shares outstanding purchased from minority shareholders	$ 1.6

Value Of Remaining Shares Outstanding Purchased From Minority Shareholders

No definition available.

Name:	prxl_ValueOfRemainingSharesOutstandingPurchasedFromMinorityShareholders
Namespace Prefix:	prxl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration