Long-Lived Assets

6 Months Ended

Jun. 30, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

3. LONG-LIVED ASSETS

Goodwill. The changes in the carrying amount of goodwill for the six months ended June 30, 2019 were as follows (in thousands):


January 1, 2019 balance	$	255,816
Adjustments related to prior acquisitions		1,333
Effects of changes in foreign currency exchange rates		(259	)
June 30, 2019 balance	$	256,890

Other Intangible Assets. Our intangible assets subject to ongoing amortization consist primarily of acquired client contracts and software. As of June 30, 2019 and December 31, 2018, the carrying values of these assets were as follows (in thousands):

	June 30, 2019							December 31, 2018
	Gross							Gross
	Carrying		Accumulated			Net		Carrying		Accumulated			Net
	Amount		Amortization			Amount		Amount		Amortization			Amount
Acquired client contracts	$	147,990	$	(87,760	)	$	60,230	$	148,148	$	(82,692	)	$	65,456
Software		155,763		(122,441	)		33,322		155,781		(119,381	)		36,400
Total intangible assets	$	303,753	$	(210,201	)	$	93,552	$	303,929	$	(202,073	)	$	101,856

The total amortization expense related to other intangible assets for the second quarters of 2019 and 2018 were $5.8 million and $4.8 million, respectively, and for the six months ended June 30, 2019 and 2018 were $11.4 million and $8.8 million, respectively. Based on the June 30, 2019 net carrying value of our other intangible assets, the estimated total amortization expense for each of the five succeeding fiscal years ending December 31 are: 2019 – $22.9 million; 2020 – $19.2 million; 2021 – $13.9 million; 2022 – $11.6 million; and 2023 – $8.3 million.

Client Contract Costs. As of June 30, 2019 and December 31, 2018, the carrying values of our client contract cost assets, related to those contracts with a contractual term greater than one year, were as follows (in thousands):

	June 30, 2019							December 31, 2018
	Gross							Gross
	Carrying		Accumulated			Net		Carrying		Accumulated			Net
	Amount		Amortization			Amount		Amount		Amortization			Amount
Client contract costs	$	69,893	$	(30,169	)	$	39,724	$	80,340	$	(43,051	)	$	37,289

The total amortization expense related to client contract costs for the second quarters of 2019 and 2018 were $6.4 million and $5.8 million, respectively, and for the six months ended June 30, 2019 and 2018 were $12.4 million and $11.3 million, respectively.