Income Taxes	3 Months Ended
Jun. 30, 2011
Income Tax Expense Benefit Abstract
Income Tax Disclosure Text Block	15. Income Taxes For the three months ended June 30, 2011, we recorded income tax provisions of $5.7 million, reflecting an effective tax rate of 36.5%. For the three months ended June 30, 2010, we recorded income tax provisions of $6.0 million, reflecting an effective tax rate of 47.9%. For the three months ended June 30, 2011, the effective tax rate was affected by the changes in the estimates of annual income in foreign jurisdictions and by a valuation allowance release. For the three months ended June 30, 2010, our accounting for income tax was affected by the fact that our losses in the periods were largely incurred in a jurisdiction with a comparatively lower tax rate, by discrete income tax expenses of $956,000 and by the release of valuation allowance.

Description containing the entire income tax disclosure. Examples include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49

Name:	us-gaap_IncomeTaxDisclosureTextBlock
Namespace Prefix:	us-gaap
Data Type:	us-types:textBlockItemType
Balance Type:	na
Period Type:	duration