Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Contract Assets and Contract Liabilities

The changes in our contract assets are as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Beginning of period balance	$	4,932	$	3,083	$	4,578	$	2,881
Commission costs and upfront payments to a customer capitalized in period	657		1,389		1,822		2,105
Amortization of contract assets	(871)		(623)		(1,682)		(1,137)
End of period balance	$	4,718	$	3,849	$	4,718	$	3,849

The changes in our contract liabilities are as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Beginning of period balance	$	12,102	$	11,536	$	10,498	$	11,176
Revenue deferred in period	2,173		916		5,693		2,471
Revenue recognized from amounts included in contract liabilities	(2,738)		(1,472)		(4,654)		(2,667)
End of period balance	$	11,537	$	10,980	$	11,537	$	10,980