Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued Liabilities
Accrued merchant settlement	$ 77,142	$ 60,218
Accrued merchant fees	40,369	43,005
Accrued taxes	32,982	29,372
Accrued compensation	19,150	15,929
Accrued cash management fees	9,894	8,825
Accrued maintenance	8,473	8,012
Accrued armored	6,354	5,922
Accrued purchases	6,249	7,222
Accrued interest	6,174	6,094
Accrued processing costs	5,918	7,636
Accrued interest on interest rate swap contracts	2,152	2,708
Accrued telecommunications costs	1,841	1,772
Other accrued expenses	23,920	22,343
Total	$ 240,618	$ 219,058