GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table summarizes the Company's goodwill activity by segment for the six months ended June 30, 2018 (in thousands):

	North America		International			Consolidated
Balance as of December 31, 2017	$	178,685	$	108,304		$	286,989
Goodwill related to acquisition	—		46,217			46,217
Foreign currency translation	—		(4,407		)	(4,407		)
Balance as of June 30, 2018	$	178,685	$	150,114		$	328,799

Schedule of Intangible Assets

The following table summarizes the Company's intangible assets as of June 30, 2018 and December 31, 2017 (in thousands):

	June 30, 2018						December 31, 2017
Asset Category	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Customer relationships	$	55,952	$	48,695	$	7,257	$	56,749	$	46,513	$	10,236
Merchant relationships	30,969		10,778		20,191		11,598		9,853		1,745
Trade names	14,456		10,965		3,491		12,077		10,469		1,608
Developed technology	37,151		36,667		484		36,864		36,864		—
Patents	20,132		15,895		4,237		19,031		15,204		3,827
Other intangible assets	11,342		9,927		1,415		10,875		9,095		1,780
Total	$	170,002	$	132,927	$	37,075	$	147,194	$	127,998	$	19,196

Schedule of Estimated Future Amortization Expense

As of June 30, 2018, the Company's estimated future amortization expense related to intangible assets is as follows (in thousands):

Remaining amounts in 2018	$	7,446
2019	11,025
2020	5,120
2021	4,393
2022	4,077
Thereafter	5,014
Total	$	37,075