Capitalized contract costs (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Deferred Commissions and Amortization Expenses

Deferred commissions were as follows:

As of December 31,	2020		2019
Deferred commissions	$	8.7	$	9.1

Amortization expense related to deferred commissions was as follows:

Year ended December 31,	2020		2019		2018
Deferred commissions - amortization expense(i)	$	3.2	$	3.1	$	6.5

(i)Reported in selling, general and administrative expense in the company’s consolidated statements of income

Costs to fulfill a contract were as follows:

As of December 31,	2020		2019
Costs to fulfill a contract	$	74.4	$	75.8

Amortization expense related to costs to fulfill a contract was as follows:

Year ended December 31,	2020		2019		2018
Costs to fulfill a contract - amortization expense	$	27.5	$	24.2	$	21.7