Income Taxes Accounting for Uncertainty in Income Taxes (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2015 USD ($)
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unrecognized tax benefits	$ 17,522
Unrecognized tax benefits, interest on income taxes accrued	1,174
Unrecognized tax benefits, income tax penalties accrued	$ 905
Non-U.S [Member] | Minimum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income tax examination, open tax years	3 years
Non-U.S [Member] | Maximum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income tax examination, open tax years	6 years
State and Local Jurisdiction [Member] | Minimum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income tax examination, open tax years	3 years
State and Local Jurisdiction [Member] | Maximum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income tax examination, open tax years	6 years