Income Taxes	9 Months Ended
Mar. 31, 2013
Income Taxes [Abstract]
Income Taxes	8. INCOME TAXES The effective tax rate for the three months ended March 31, 2013 and 2012 was 25.7% and 24.5%, respectively. The increase in effective tax rate for the three months ended March 31, 2013 compared to the same period last year was primarily attributable to an increase in taxes associated with changes in the Company's uncertain tax positions, partially offset by a decrease in taxes due to changes in earnings mix among jurisdictions and nondeductible compensation expense. The Company has recognized an increase in net unrecognized tax benefits for the three months ended March 31, 2013 as compared to the same period last year, which resulted in an increase in income tax expense of approximately $2.7 million and an increase in the effective tax rate of 4.7%. This increase was primarily due to the reduction of the recognition of expiration of statutes of limitation during the three months ended March 31, 2013 as compared to the same period last year. The effective tax rate for the nine months ended March 31, 2013 and 2012 was 27.7% and 29.6%, respectively. The decrease in effective tax rate for the nine months ended March 31, 2013 compared to the same period last year was primarily attributable to a decrease in taxes associated with changes in the Company's earnings mix among jurisdictions and nondeductible compensation expense, partially offset by a tax rate decrease in the U.K. which reduced the carrying value of the Company's deferred tax assets. The Company has recognized a decrease in net unrecognized tax benefits for the nine months ended March 31, 2013 as compared to the same period last year, which resulted in a reduction in income tax expense of approximately $3.1 million and a reduction in the effective tax rate of 1.8%. This reduction was primarily due to favorable settlements with tax authorities and the expiration of statutes of limitation recognized during the three months ended September 30, 2012. The Company estimates that within the next 12 months, its unrecognized income tax benefits will decrease by between approximately $4.6 million and approximately $6.6 million due to the expiration of statutes of limitations and settlements with tax authorities. However, audit outcomes and the timing of audit settlements are subject to significant uncertainty. Over the next 12 months, it is reasonably possible that the Company's tax positions will continue to generate liabilities related to uncertain tax positions. The Company currently has no plans to repatriate to the U.S. its cumulative unremitted foreign earnings, as it intends to permanently reinvest such earnings internationally. If the Company changes its strategy in the future and repatriates such funds, the amount of any taxes, which could be significant, and the application of any tax credits, would be determined based on the appropriate jurisdictional income tax laws at the time of such repatriation. Due to the extent of uncertainty as to which remittance structure would be used should a decision be made in the future to repatriate, the availability and the complexity of calculating foreign tax credits, and the implications of indirect taxes, including withholding taxes, determination of the unrecognized deferred income tax liability related to these unremitted earnings is not practicable. The Company's income tax returns are no longer subject to examination by the U.S. tax authorities for tax years ending before June 2011, by the U.K. tax authorities for tax years ending before June 2009, by the German tax authorities for tax years ending before June 2007 and the Irish tax authorities for tax years ending before June 2009. Certain periods prior to these dates, however, could be subject to adjustment as a result of the competent authority process, or due to the impact of items such as carryback or carryforward claims.

8. INCOME TAXES

The effective tax rate for the three months ended March 31, 2013 and 2012 was 25.7% and 24.5%, respectively. The increase in effective tax rate for the three months ended March 31, 2013 compared to the same period last year was primarily attributable to an increase in taxes associated with changes in the Company's uncertain tax positions, partially offset by a decrease in taxes due to changes in earnings mix among jurisdictions and nondeductible compensation expense. The Company has recognized an increase in net unrecognized tax benefits for the three months ended March 31, 2013 as compared to the same period last year, which resulted in an increase in income tax expense of approximately $2.7 million and an increase in the effective tax rate of 4.7%. This increase was primarily due to the reduction of the recognition of expiration of statutes of limitation during the three months ended March 31, 2013 as compared to the same period last year.

The effective tax rate for the nine months ended March 31, 2013 and 2012 was 27.7% and 29.6%, respectively. The decrease in effective tax rate for the nine months ended March 31, 2013 compared to the same period last year was primarily attributable to a decrease in taxes associated with changes in the Company's earnings mix among jurisdictions and nondeductible compensation expense, partially offset by a tax rate decrease in the U.K. which reduced the carrying value of the Company's deferred tax assets. The Company has recognized a decrease in net unrecognized tax benefits for the nine months ended March 31, 2013 as compared to the same period last year, which resulted in a reduction in income tax expense of approximately $3.1 million and a reduction in the effective tax rate of 1.8%. This reduction was primarily due to favorable settlements with tax authorities and the expiration of statutes of limitation recognized during the three months ended September 30, 2012.

The Company estimates that within the next 12 months, its unrecognized income tax benefits will decrease by between approximately $4.6 million and approximately $6.6 million due to the expiration of statutes of limitations and settlements with tax authorities. However, audit outcomes and the timing of audit settlements are subject to significant uncertainty. Over the next 12 months, it is reasonably possible that the Company's tax positions will continue to generate liabilities related to uncertain tax positions.

The Company currently has no plans to repatriate to the U.S. its cumulative unremitted foreign earnings, as it intends to permanently reinvest such earnings internationally. If the Company changes its strategy in the future and repatriates such funds, the amount of any taxes, which could be significant, and the application of any tax credits, would be determined based on the appropriate jurisdictional income tax laws at the time of such repatriation. Due to the extent of uncertainty as to which remittance structure would be used should a decision be made in the future to repatriate, the availability and the complexity of calculating foreign tax credits, and the implications of indirect taxes, including withholding taxes, determination of the unrecognized deferred income tax liability related to these unremitted earnings is not practicable.

The Company's income tax returns are no longer subject to examination by the U.S. tax authorities for tax years ending before June 2011, by the U.K. tax authorities for tax years ending before June 2009, by the German tax authorities for tax years ending before June 2007 and the Irish tax authorities for tax years ending before June 2009. Certain periods prior to these dates, however, could be subject to adjustment as a result of the competent authority process, or due to the impact of items such as carryback or carryforward claims.