Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table summarizes revenues from our contracts disaggregated by revenue generating activity contained therein for the years ended December 31, 2019, 2018 and 2017:

	Year Ended December 31,
(in thousands)	2019		2018		2017
Dayrate drilling	$	184,374	$	133,278	$	84,834
Mobilization	5,365		2,100		2,235
Reimbursables	11,237		4,970		2,828
Early termination	1,405		—		—
Capital modification	115		216		91
Intangible	1,079		2,044		—
Other	27		1		19
Total revenue	$	203,602	$	142,609	$	90,007

Contract with Customer, Asset and Liability

Significant changes in the contract liabilities balance during the years ended December 31, 2019 and 2018 are as follows:

	2019			2018
(in thousands)	Contract Liabilities			Contract Liabilities
Revenue recognized that was included in contract liabilities at beginning of period	$	1,374		$	763
Increase in contract liabilities due to cash received, excluding amounts recognized as revenue	$	(311	)	$	(1,301	)

The following table provides information about receivables and contract liabilities related to contracts with customers as of December 31, 2019 and 2018, respectively. We had no contract assets in either year.

(in thousands)	December 31, 2019			December 31, 2018
Receivables, which are included in "Accounts receivable, net"	$	35,378		$	41,987
Contract liabilities	$	(311	)	$	(1,374	)

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction

The estimated revenue does not include amounts of variable consideration that are constrained.

	Year Ending December 31,
(in thousands)	2020			2021		2022		Total
Revenue	$	(311	)	$	—	$	—	$	(311	)