Software and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying Amount and Accumulated Amortization of Other Intangible Assets

The carrying amount and accumulated amortization of the Company’s other intangible assets that were subject to amortization at each balance sheet date are as follows:

(in thousands)	March 31, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Balance		Gross Carrying Amount		Accumulated Amortization			Net Balance
Customer relationships	$	308,489	$	(122,164	)	$	186,325	$	305,218	$	(116,677	)	$	188,541
Trademarks and tradenames		16,842		(14,479	)		2,363		16,646		(13,906	)		2,740
	$	325,331	$	(136,643	)	$	188,688	$	321,864	$	(130,583	)	$	191,281

Estimated Amortization Expense for Future Fiscal Years Based on Capitalized Software and Other Intangible Assets

Based on capitalized software and other intangible assets at March 31, 2018, estimated amortization expense for future fiscal years is as follows:

Fiscal Year Ending December 31,	Software Amortization		Other Intangible Assets Amortization
(in thousands)
Remainder of 2018	$	38,406	$	14,410
2019		42,955		18,777
2020		33,127		17,866
2021		20,461		17,342
2022		8,780		17,184
2023		4,640		16,854
Thereafter		2,284		86,255
Total	$	150,653	$	188,688