Stock-Based Compensation (Unrecognized Stock-Based Compensation) (Details) (Unrecognized Stock-Based Compensation Expense [Member], USD $) In Thousands	Jun. 30, 2011
Unrecognized Stock-Based Compensation Expense [Member]
Stock options	$ 17,756
Non-vested stock awards/stock units	2,552
Total	$ 20,308

As of the latest balance-sheet date presented, the total compensation cost related to outstanding, nonvested share-based compensation awards not yet recognized (will be charged against earnings as services are performed or other vesting criteria are met).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph h

Name:	us-gaap_EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwards
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant