Debt - Summary of Notes Payable (Details) - Notes Payable	12 Months Ended
Dec. 31, 2018 USD ($)	Dec. 31, 2018 EUR (€)
Debt Instrument [Line Items]
Balance	$ 1,421,953	€ 1,242,554
Euro Denominated Term Loan 2015 - Fixed
Debt Instrument [Line Items]
Loan Description	Euro denominated term Loan 2015 - fixed
Interest rate	2.125%	2.125%
Maturity date	2019
Balance	$ 55,563	€ 48,554
Euro Denominated Term Loan 2017/2 - Fixed
Debt Instrument [Line Items]
Loan Description	Euro denominated term Loan 2017/2 - fixed
Interest rate	1.00%	1.00%
Maturity date	2019
Balance	$ 915,504	€ 800,000
Euro Denominated Term Loan 2016 - Fixed
Debt Instrument [Line Items]
Loan Description	Euro denominated term Loan 2016 - fixed
Interest rate	2.125%	2.125%
Maturity date	2020
Balance	$ 107,572	€ 94,000
Euro Denominated Term Loan 2017 - Fixed
Debt Instrument [Line Items]
Loan Description	Euro denominated term Loan 2017 - fixed
Interest rate	2.15%	2.15%
Maturity date	2020
Balance	$ 343,314	€ 300,000

Identification of the lender and information about a contractual promise to repay a short-term or long-term obligation, which includes borrowings under lines of credit, notes payable, commercial paper, bonds payable, debentures, and other contractual obligations for payment. This may include rationale for entering into the arrangement, significant terms of the arrangement, which may include amount, repayment terms, priority, collateral required, debt covenants, borrowing capacity, call features, participation rights, conversion provisions, sinking-fund requirements, voting rights, basis for conversion if convertible and remarketing provisions. The description may be provided for individual debt instruments, rational groupings of debt instruments, or by debt in total.

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