Allowance for Expected Credit Losses - Summary of Changes in Allowance for Expected Credit Losses for Financial Assets Measured at Amortized Cost (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Accounts Receivable
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Adoption of ASC 326	$ 407
Credit loss expense, net of recoveries	112
Write-offs	(181)
Ending Balance	338
Contract Assets [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Adoption of ASC 326	65
Credit loss expense, net of recoveries	15
Ending Balance	$ 80