Goodwill and Other Intangible Assets (Tables) - USD ($)

12 Months Ended

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Goodwill

Goodwill represents the excess of the cost of acquired assets over the fair value of the underlying identifiable assets at the date of acquisition. Changes in goodwill were as follows (in thousands):

	As of December 31,
	2019		2018
Beginning balance	$	19,804	$	27,144
Omaha divestiture	—		(7,340)
Ending balance	$	19,804	$	19,804

Summary of Intangible Assets

The following is a summary of intangible assets at December 31, 2019 and 2018 (in thousands, except years):

	Weighted Average Amortization Period (years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
2019
Client relationships	14.8	$	21,431	$	(7,416)	$	14,015
Internally developed software	5.8	1,439		(233)		1,206
Trade names	4.9	708		(673)		35
		$	23,578	$	(8,322)	$	15,256
2018
Client relationships	14.8	$	21,431	$	(5,960)	$	15,471
Internally developed software	7.0	418		(99)		319
Trade names	4.9	708		(537)		171
		$	22,557	$	(6,596)	$	15,961

Goodwill impairment loss

$ 0

$ 0

$ 0

Amortization expense

$ 1,726,000

$ 1,672,000

$ 1,872,000

Estimated Amortization Expense for Intangible Assets over the Next Five Years

Estimated amortization expense for intangible assets over the next five years is as follows (in thousands):

For the year ending December 31,	Estimated Amortization Expense
2020	$	1,658
2021	$	1,548
2022	$	1,548
2023	$	1,529
2024	$	1,454