Details of our capitalized software development costs and licenses were as follows:


	September 30, 2022				March 31, 2022
	Current		Non-current		Current		Non-current
Software development costs, internally developed	$	68.3	$	718.3	$	59.2	$	599.3
Software development costs, externally developed	7.5		166.0		19.3		145.2
Licenses	13.2		23.5		2.9		11.4
Software development costs and licenses	$	89.0	$	907.8	$	81.4	$	755.9

During the three months ended September 30, 2022 and 2021, we recorded $6.4 and $55.3, respectively, of software development impairment charges (a component of Cost of revenue). The impairment charges recorded during the three months ended September 30, 2022 related to recognizing unamortized capitalized costs for the development of a title, which were anticipated to exceed the net realizable value of the asset at the time they were impaired. The impairment charges recorded during the three months ended September 30, 2021 related to (i) a decision not to proceed with further development of certain interactive entertainment software and (ii) recognizing unamortized capitalized costs for the development of a title, which were anticipated to exceed the net realizable value of the asset at the time they were impaired.

During the six months ended September 30, 2022 and 2021, we recorded $23.3 and $65.0, respectively, of software development impairment charges (a component of Cost of revenue). The impairment charges recorded during the six months ended September 30, 2022 to (i) a decision not to proceed with further development of certain interactive entertainment software and (ii) recognizing unamortized capitalized costs for the development of a title, which were anticipated to exceed the net realizable value of the asset at the time they were impaired. The impairment charges recorded during the six months ended September 30, 2021 related to (i) a decision not to proceed with further development of certain interactive entertainment software and (ii) recognizing unamortized capitalized costs for the development of a title, which were anticipated to exceed the net realizable value of the asset at the time they were impaired.