Other Intangible Assets, Net

6 Months Ended

Jun. 30, 2020

7.	Other Intangible Assets, Net

Other intangible assets, net consisted of the following:

	Weighted Average	June 30, 2020
	Amortization Period (in years)	Carrying Value		Accumulated Amortization		Net Carrying Value
Merchant relationships	8	$	176.8	$	93.7	$	83.1
Acquired technology	10		105.2		37.5		67.7
Trademarks and trade names	9		55.5		34.6		20.9
Noncompete agreements	2		3.9		3.8		0.1
Capitalized software development costs	3		19.5		3.8		15.7
Leasehold interest	2		0.1		0.1		—
Residual commission buyouts (a)	3		16.2		11.5		4.7
Total intangible assets		$	377.2	$	185.0	$	192.2

	Weighted Average	December 31, 2019
	Amortization Period (in years)	Carrying Value		Accumulated Amortization		Net Carrying Value
Merchant relationships	8	$	176.8	$	81.1	$	95.7
Acquired technology	10		105.2		32.2		73.0
Trademarks and trade names	9		55.5		30.1		25.4
Noncompete agreements	2		3.9		3.6		0.3
Capitalized software development costs	3		14.9		2.0		12.9
Leasehold interest	2		0.1		0.1		—
Residual commission buyouts (a)	3		15.7		9.8		5.9
Total intangible assets		$	372.1	$	158.9	$	213.2

(a)

Residual commission buyouts include contingent payments of $2.8 million and $2.7 million as of June 30, 2020 and December 31, 2019, respectively.

As of June 30, 2020, the estimated amortization expense for intangible assets for each of the five succeeding years and thereafter is as follows:

Amounts charged to expense in the unaudited Condensed Consolidated Statements of Operations for amortization of intangible assets were as follows:

	Three months ended June 30,				Six months ended June 30,
	2020		2019		2020		2019
Depreciation and amortization expense	$	9.4	$	9.4	$	18.9	$	18.7
Cost of sales		3.7		2.7		7.2		5.5
Total	$	13.1	$	12.1	$	26.1	$	24.2