Revenue, Deferred Revenue and Deferred Costs and Other (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability

Deferred revenue activity is as follows (in thousands):

	Three Months Ended March 31,
	2020			2019
Balance at beginning of period	$	4,599		$	2,051
Amounts billed but unrecognized	3,140			1,378
Revenue recognized	(1,640		)	(1,309		)
Assumed from business combination	—			1,407
Balance at end of period	$	6,099		$	3,527

Balance at the end of period (in thousands):

	March 31,		December 31,
	2020		2019
Deferred revenue, current	$	5,351	$	3,945
Deferred revenue, noncurrent	748		654
Total deferred revenue	$	6,099	$	4,599

Balance at the end of period (in thousands):

	March 31, 2020
	Deferred Device Costs		Deferred Contract Costs		Deferred Execution Credits		Total
Deferred costs, current	$	20,961	$	1,162	$	472	$	22,595
Deferred costs, noncurrent	8,789		1,706		—		10,495
Total deferred costs	$	29,750	$	2,868	$	472	$	33,090

	December 31, 2019
	Deferred Device Costs		Deferred Contract Costs		Deferred Execution Credits		Total
Deferred costs, current	$	14,746	$	1,121	$	184	$	16,051
Deferred costs, noncurrent	3,833		1,867		—		5,700
Total deferred costs	$	18,579	$	2,988	$	184	$	21,751

The activity is as follows (in thousands):

	Three Months Ended March 31,
	2020			2019
Balance at beginning of period	$	1,152		$	609
ASC 606 adoption date impact adjustment	—			(222		)
Amount deferred	776			193
Revenue recognized	(198		)	(2		)
Payments	—			(45		)
Balance at end of period	$	1,730		$	533

Deferred costs and other activity is as follows (in thousands):

	Three Months Ended March 31, 2020
	Deferred Device Costs			Deferred Contract Costs			Deferred Execution Credits			Total
Balance at beginning of period	$	18,579		$	2,988		$	184		$	21,751
Additions	17,144			174			418			17,736
Revenue recognized	—			—			(130		)	(130		)
Cost of revenue recognized	(5,973		)	—			—			(5,973		)
Sales and marketing expenses recognized	—			(294		)	—			(294		)
Balance at end of period	$	29,750		$	2,868		$	472		$	33,090

	Three Months Ended March 31, 2019
	Deferred Device Costs			Deferred Contract Costs			Deferred Execution Credits			Total
Balance at beginning of period	$	8,469		$	—		$	—		$	8,469
ASC 606 adoption date impact adjustment	—			3,692			771			4,463
Additions	8,495			—			112			8,607
Revenue recognized	—			—			(245		)	(245		)
Cost of revenue recognized	(2,598		)	—			—			(2,598		)
Sales and marketing expenses recognized	—			(254		)	—			(254		)
Balance at end of period	$	14,366		$	3,438		$	638		$	18,442