Income Taxes Accounting for Uncertainty in Income Taxes (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unrecognized tax benefits	$ 16,682	$ 16,682
Unrecognized tax benefits, interest on income taxes accrued	1,588	1,588
Unrecognized tax benefits, income tax penalties accrued	960	$ 960
Tax provision resulting from income tax receivable write off	$ 9,000
State and Local Jurisdiction | Minimum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income tax examination, open tax years		3 years
State and Local Jurisdiction | Maximum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income tax examination, open tax years		6 years
Non-U.S | Minimum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income tax examination, open tax years		3 years
Non-U.S | Maximum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income tax examination, open tax years		6 years