Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation Unremitted Earnings From Foreign Operations	(1.10%)		(0.90%)
Income Tax Expense (Benefit)	$ 2,418		$ 3,216
Deferred Tax Benefit Expense Valuation Allowance Adj Capital Loss Carryforwards	$ 100		$ 0
Foreign Earnings Repatriated		$ 10,700
Effective Income Tax Rate Reconciliation, Percent	39.50%		30.60%
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 6,121		$ 10,497
Brazilian [Member]
Income Taxes [Line Items]
Effective income tax rate reconciliation social contribution on income	9.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Excluding Social Contribution On Income	25.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Including Social Contribution On Income	34.00%
Excess Capital Losses From Investments And Other Related Items [Member]
Income Taxes [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 11,200
Terphane Ltda [Member]
Income Taxes [Line Items]
BrazilianTaxCreditDeductionPeriod	24 months
Current Effective Tax Rate Including Social Contribution On Income	15.25%
LengthBrazilianTaxIncentive	10 years