REVENUE AND CONTRACT ACQUISITION COSTS (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Revenue Disaggregated by Types and Geography

The following table presents revenue disaggregated by types and geography (in millions):



	Three Months Ended March 31,
U.S.	2019		2018
Instruments and accessories	$	407.4	$	337.6
Systems	160.7		124.0
Services	123.5		110.8
Total U.S. revenue	$	691.6	$	572.4

Outside of U.S. (“OUS”)
Instruments and accessories	$	144.9	$	122.7
Systems	86.8		110.5
Services	50.4		41.9
Total OUS revenue	$	282.1	$	275.1

Total
Instruments and accessories	$	552.3	$	460.3
Systems	247.5		234.5
Services	173.9		152.7
Total revenue	$	973.7	$	847.5

Summary of Contract Assets and Liabilities

The following information summarizes the Company’s contract assets and liabilities (in millions):



	As of
	March 31, 2019		December 31, 2018
Contract assets	$	16.5	$	12.4
Deferred revenue	$	329.2	$	327.3

Sales-type Lease Revenue

The following table presents revenue from our lease arrangements (in millions):



	Three Months Ended March 31,
	2019		2018
Sales-type lease revenue	$	4.6	$	12.0
Operating lease revenue	$	20.4	$	9.5

Sales-type Leases. Lease receivables relating to sales-type lease arrangements are presented on the Condensed Consolidated Balance Sheets as follows (in millions):



	As of
	March 31, 2019			December 31, 2018
Gross lease receivables	$	144.1		$	150.4
Unearned income	(6.0		)	(6.3		)
Allowance for credit loss	(1.0		)	(1.0		)
Net investment in sales-type leases	$	137.1		$	143.1
Reported as:
Prepaids and other current assets	$	51.8		$	51.2
Intangible and other assets, net	85.3			91.9
Total, net	$	137.1		$	143.1

Operating Lease Revenue

The following table presents revenue from our lease arrangements (in millions):



	Three Months Ended March 31,
	2019		2018
Sales-type lease revenue	$	4.6	$	12.0
Operating lease revenue	$	20.4	$	9.5