Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2016

Line of Credit [Member]

Debt Instrument [Line Items]

Schedule of Debt [Table Text Block]

As of March 31, 2016, the Company had the following unused borrowing capacity under its revolving credit facility (amounts in thousands):

Composition	March 31, 2016
Total available borrowing capacity	$	625,000
Outstanding revolving loans	$	57,937
Outstanding letter of credit guarantees	$	5,123
Unused borrowing capacity	$	561,940

As of March 31, 2016, the Company had the following outstanding revolving loans (amounts in thousands, except percentages):

	Local Currency		United States Dollar Equivalent		Interest Rate
British pound (swingline loan)	£	1,400	$	2,015	2.48	%
British pound	£	18,000	$	25,907	2.51	%
Canadian dollar	C$	23,000	$	17,724	2.88	%
Euro	€	10,800	$	12,292	2.00	%

Loans Payable [Member]

Debt Instrument [Line Items]

Schedule of Debt [Table Text Block]

As of March 31, 2016, the Company had the following outstanding term loans (amounts in thousands, except percentages):

	Local Currency		United States Dollar Equivalent		Interest Rate
United States dollar	$	1,737,000	$	1,737,000	2.43	%
Australian dollar	A$	276,627	$	212,228	4.14	%
British pound	£	101,681	$	146,350	2.51	%