Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accrued Liabilities
Accrued merchant settlement	$ 138,525	$ 101,366
Other accrued expenses	36,767	37,889
Accrued merchant fees	36,595	57,079
Accrued taxes	29,280	35,759
Accrued compensation	23,153	24,044
Accrued interest	10,175	8,679
Accrued cash management fees	9,598	16,604
Accrued processing costs	9,579	7,830
Accrued armored	6,646	6,654
Accrued purchases	5,657	4,631
Accrued maintenance	2,953	3,927
Accrued telecommunications costs	1,624	1,413
Accrued interest on interest rate swap contracts	202	1,070
Total accrued liabilities	310,754	306,945
Restructuring	$ 2,593	$ 5,383