Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-lived Intangible Assets [Roll Forward]
Balance at the beginning of the year, gross	$ 110,206	$ 97,976	$ 58,959
Balance at the beginning of the year, accumulated amortization	48,271	40,827	32,962
Balance at the beginning of the year, net	61,935	57,149	25,997
Additions	27,052	12,230	39,017
Amortization expense	(10,481)	(7,444)	(7,865)
Balance at the end of the year, gross	137,258	110,206	97,976
Balance at the end of the year, accumulated amortization	58,752	48,271	40,827
Balance at the end of the year, net	$ 78,506	$ 61,935	$ 57,149
Weighted-average remaining life (in years)	7 years 6 months	7 years 9 months 18 days	8 years 3 months 18 days
Minimum
Finite-lived Intangible Assets [Roll Forward]
Estimated useful lives (in years)	6 months	8 months 12 days	2 months 12 days
Maximum
Finite-lived Intangible Assets [Roll Forward]
Estimated useful lives (in years)	9 years 3 months 18 days	9 years 9 months 18 days	9 years 3 months 18 days