2004-2005 Cases (Details) (2004 - 2005 Cases [Member], EUR €)	72 Months Ended		73 Months Ended
	Feb. 28, 2018 Indirect import challenge - income tax assessment [Member]	Sep. 30, 2012 Indirect import challenge - income tax assessment [Member]	Sep. 30, 2017 Indirect import challenge - customs tax assessment [Member]	Sep. 30, 2012 Indirect import challenge - customs tax assessment [Member]
Loss Contingencies [Line Items]
Assessment amount excluding interest and penalties		€ 12,000,000		€ 18,200,000
Interest and penalties assessed		19,100,000		10,200,000
Total assessment		31,100,000		28,400,000
Deposits made on amounts assessed that have become due and payable notwithstanding the pending appeals		800,000		12,300,000
Monthly deposit payment	€ 113,000		€ 350,000