Contract Assets and Contract Liabilities (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability

The balance of contract assets and contract liabilities consisted of the following (in thousands):

	September 30, 2018		December 31, 2017
Contract assets
Current	$	679	$	325
Non-Current	245		—
	$	924	$	325
Contract Liabilities
Current	$	4,843	$	2,252
Non-current	2,378		4,442
	$	7,221	$	6,694

	September 30, 2018
Estimate of when contract liabilities will be recognized
within 12 months	$	4,843
within 12 to 24 months	1,994
greater than 24 months	384