Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2018		21,489,112
Beginning balance at Dec. 31, 2018	$ 87,307	$ 2	$ 180,481	$ (7,501)	$ (85,675)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in business combination (in shares)		3,651
Issuance of common stock in business combination	(30)		(30)
Issuance of stock under Company plans, net of shares withheld for tax (in shares)		49,537
Issuance of stock under Company plans, net of shares withheld for tax	(1,379)		(1,379)
Stock-based compensation	4,628		4,628
Foreign currency translation adjustment	(637)			(637)
Unrealized translation gain (loss) on foreign currency denominated intercompany loans	3,006			3,006
Unrealized loss on interest rate swaps	0
Net loss	(7,830)				(7,830)
Ending balance (in shares) at Mar. 31, 2019		21,443,226
Ending balance at Mar. 31, 2019	$ 85,065	$ 2	183,700	(5,132)	(93,505)
Beginning balance (in shares) at Dec. 31, 2019	25,250,120	25,250,120
Beginning balance at Dec. 31, 2019	$ 212,861	$ 3	345,127	(1,223)	(131,046)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock under Company plans, net of shares withheld for tax (in shares)		55,307
Issuance of stock under Company plans, net of shares withheld for tax	(714)		(714)
Issuance of stock, net of issuance costs	(13)	$ 0	(13)
Stock-based compensation	9,320		9,320
Foreign currency translation adjustment	(3,459)			(3,459)
Unrealized translation gain (loss) on foreign currency denominated intercompany loans	(7,313)			(7,313)
Unrealized loss on interest rate swaps	(31,401)			(31,401)
Net loss	$ (20,081)				(20,081)
Ending balance (in shares) at Mar. 31, 2020	25,305,427	25,305,427
Ending balance at Mar. 31, 2020	$ 159,092	$ 3	$ 353,720	$ (43,396)	$ (151,235)