Acquisitions (Identifiable Assets Acquired and Liabilities Assumed) (Details) (USD $) In Thousands, unless otherwise specified			0 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Jan. 16, 2014 GXS Group, Inc. [Member]	Jan. 16, 2014 Customer Assets [Member] GXS Group, Inc. [Member]	Jan. 16, 2014 Technology Assets [Member] GXS Group, Inc. [Member]
Business Acquisition [Line Items]
Current assets (inclusive of cash acquired of $24,382)			$ 127,406
Cash acquired from acquisition			24,382
Non-current tangible assets			36,139
Intangible assets				364,600	123,200
Liabilities and non-controlling interest assumed			(105,459)
Total identifiable net assets			545,886
Goodwill	1,940,082	1,963,557	672,765
Net assets acquired			$ 1,218,651