Acquisitions - Schedule of Consideration (Detail) - USD ($) $ in Thousands		May 14, 2019	Apr. 15, 2019	Oct. 01, 2018
AmOne Corp [Member]
Business Acquisition [Line Items]
Cash				$ 23,032
Post-closing adjustments for net assets acquired				138
Post-closing payments, net of imputed interest	[1]			7,514
Contingent consideration				0
Total				$ 30,684
CloudControlMedia, LLC [Member]
Business Acquisition [Line Items]
Cash			$ 8,281
Post-closing adjustments for net assets acquired			(72)
Post-closing payments, net of imputed interest	[1]		6,671
Contingent consideration			3,553
Total			$ 18,433
MyBankTracker.com, LLC [Member]
Business Acquisition [Line Items]
Cash		$ 4,511
Post-closing adjustments for net assets acquired		0
Post-closing payments, net of imputed interest	[1]	3,708
Contingent consideration		1,505
Total		$ 9,724

[1] The post-closing payment is net of imputed interest of $486 thousand for AmOne, $829 thousand for CCM and $292 thousand for MBT