Income Taxes (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Income Tax Contingency [Line Items]
Current Income Tax Expense (Benefit)		$ 2,600,000		$ 9,200,000
Income tax expense (benefit)	[1]	2,600,000	$ 2,037,000	9,200,000	$ 6,041,000
Current State and Local Tax Expense (Benefit)				400,000
Current Federal Tax Expense (Benefit)		200,000	(700,000)		(500,000)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				0.007
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Income tax expense (benefit)			$ 2,700,000		6,400,000
Foreign Income Tax Expense (Benefit), Continuing Operations		2,900,000		9,600,000
Tax Adjustments, Settlements, and Unusual Provisions				600,000
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Income tax expense (benefit)		$ 100,000			$ 100,000
Reduction in Taxes [Member]
Income Tax Contingency [Line Items]
Income tax expense (benefit)						$ 800,000
BEAT Tax [Member]
Income Tax Contingency [Line Items]
Income tax expense (benefit)				$ 800,000

[1] Three and nine months ended December 31, 2017 adjusted due to the adoption of ASC 606.