Business Combinations - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Jan. 07, 2019	Mar. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill		$ 58,425	$ 58,425
Deferred tax liability, net		$ 4,100
Dynasty
Business Acquisition [Line Items]
Total current assets	$ 305
Total intangible assets subject to amortization	20,750
Goodwill	42,877
Other noncurrent assets	35
Total assets acquired	$ 63,967
Estimated Useful Life (in years)	6 years
Accrued and other liabilities	$ 48
Deferred tax liability, net	3,711
Total liabilities assumed	3,759
Purchase consideration	60,208
Dynasty | Technology
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 5,730
Estimated Useful Life (in years)	4 years
Dynasty | Database
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 4,710
Estimated Useful Life (in years)	10 years
Dynasty | Customer relationships
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 1,110
Estimated Useful Life (in years)	5 years
Dynasty | Backlog
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 470
Estimated Useful Life (in years)	1 year
Dynasty | Trademark and trade name
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 1,390
Estimated Useful Life (in years)	10 years
Dynasty | Non-compete agreement
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 7,340
Estimated Useful Life (in years)	5 years