Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accounting standards update					us-gaap:AccountingStandardsUpdate201712Member
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 429,422	$ 382,658	$ 408,165	$ 366,349	$ 366,349
Other comprehensive loss	1,724	(640)	(3,710)	(4,119)
Ending balance	444,426	395,822	444,426	395,822	408,165
Retained Earnings
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from retained earnings to other comprehensive income as a result of the adoption of ASU No. 2017-12					200
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	98,487	52,174	74,254	34,187	34,187
Ending balance	110,288	64,872	110,288	64,872	74,254
Foreign Currency Translation Gains (Losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			848
Other comprehensive loss			(2,178)
Ending balance	(1,330)		(1,330)		848
Unrealized Loss on Derivatives, Net of Taxes
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(3,312)
Other comprehensive loss			(1,532)
Ending balance	(4,844)		(4,844)		(3,312)
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(7,898)	(3,660)	(2,464)	(181)	(181)
Other comprehensive loss			(3,710)
Ending balance	$ (6,174)	$ (4,300)	$ (6,174)	$ (4,300)	$ (2,464)