Segment Reporting and Major Customers - Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting
Total depreciation and amortization	$ 104,773	$ 104,290	$ 208,483	$ 208,679
Operating Segments
Segment Reporting
Depreciation and amortization	49,588	41,476	96,854	81,892
Operating Segments \| Issuer Solutions
Segment Reporting
Depreciation and amortization	36,129	29,640	71,296	57,971
Operating Segments \| Merchant Solutions
Segment Reporting
Depreciation and amortization	8,257	7,523	15,940	15,348
Operating Segments \| Consumer Solutions
Segment Reporting
Depreciation and amortization	5,202	4,313	9,618	8,573
Segment Reconciling Items
Segment Reporting
Acquisition intangible amortization	53,706	61,865	108,663	124,888
Corporate Administration and Other
Segment Reporting
Depreciation and amortization	$ 1,479	$ 949	$ 2,966	$ 1,899

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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