Acquisition - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Noncurrent assets:
Goodwill	$ 1,280,226	$ 1,280,525
SpeedPay
Current assets:
Cash and cash equivalents	135
Receivables, net of allowances	17,658
Settlement assets	239,604
Prepaid expenses	317
Other current assets	19,585
Total current assets acquired	277,299
Noncurrent assets:
Goodwill	366,508
Other noncurrent assets	3,745
Total assets acquired	980,552
Current liabilities:
Accounts payable	6,623
Settlement liabilities	212,892
Employee compensation	1,959
Other current liabilities	3,802
Total current liabilities acquired	225,276
Noncurrent liabilities:
Other noncurrent liabilities	1,219
Total liabilities acquired	226,495
Net assets acquired	754,057
SpeedPay | Software
Noncurrent assets:
Finite-lived intangible assets	$ 113,600
Weighted Average Useful Lives	7 years
SpeedPay | Customer relationships
Noncurrent assets:
Finite-lived intangible assets	$ 208,500
Weighted Average Useful Lives	15 years
SpeedPay | Trademarks
Noncurrent assets:
Finite-lived intangible assets	$ 10,900
Weighted Average Useful Lives	5 years