Description of Business and Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

ASC 606

Schedule of changes in deferred commissions

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Balance, beginning of the period	$	17,727	$	16,928	$	17,331	$	18,408
Deferral of commissions earned		4,271		4,158		12,862		10,953
Recognition of commission expense		(4,867)		(4,095)		(12,844)		(12,370)
Impairment of deferred commissions		(21)		—		(239)		—
Balance, end of the period	$	17,110	$	16,991	$	17,110	$	16,991