Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

The following table disaggregates our revenue by business segment, product and service offering and timing of transfer of control:


	Three months ended March 31, 2021
	Americas		Asia Pacific		Europe, Middle East, & Africa		Total
Sales by Product and Service Offering:
Critical infrastructure & solutions	$	279.2	$	216.3	$	132.4	$	627.9
Services & spares	154.2		95.5		72.1		321.8
Integrated rack solutions	68.1		45.6		35.0		148.7
Total	$	501.5	$	357.4	$	239.5	$	1,098.4

Timing of revenue recognition:
Products and services transferred at a point in time	$	360.5	$	281.6	$	195.0	$	837.1
Products and services transferred over time	141.0		75.8		44.5		261.3
Total	$	501.5	$	357.4	$	239.5	$	1,098.4


	Three months ended March 31, 2020
	Americas		Asia Pacific		Europe, Middle East, & Africa		Total
Sales by Product and Service Offering: (1)
Critical infrastructure & solutions	$	239.8	$	116.3	$	105.4	$	461.5
Services & spares	161.6		79.3		65.4		306.3
Integrated rack solutions	65.3		28.3		35.9		129.5
Total	$	466.7	$	223.9	$	206.7	$	897.3

Timing of revenue recognition:
Products and services transferred at a point in time	$	313.2	$	160.9	$	165.8	$	639.9
Products and services transferred over time	153.5		63.0		40.9		257.4
Total	$	466.7	$	223.9	$	206.7	$	897.3

(1)Comparative results for Critical infrastructure & solutions, Services & spares and Integrated rack solutions for the three months ended March 31, 2020 have been adjusted by $(37.9), $3.7, and $34.2, respectively, to reflect the strategic realignment described above.

Schedule of Contract Assets, Liabilities and Deferred Revenue

The opening and closing balances of our current and long-term contract assets and current and long-term deferred revenue are as follows:


	Balances at March 31, 2021		Balances at December 31, 2020

Deferred revenue - current (2)	$	232.6	$	199.6
Deferred revenue - noncurrent (3)	40.8		38.8
Other contract liabilities - current (2)	41.2		36.1

(2)Current deferred revenue and contract liabilities are included within accrued expenses and other liabilities.

(3)Noncurrent deferred revenue is recorded within other long-term liabilities.