Business Combinations Sundog (Details) - USD ($) $ in Thousands	May 22, 2019	Jun. 30, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 335,983	$ 327,992
Sundog Interactive [Member]
Business Acquisition [Line Items]
Date of acquisition	May 22, 2019
Total purchase price	$ 14,100
Cash paid for acquisition	10,300
Common stock issued	1,300
Net working capital settlement	600
Initial fair value estimate of additional earnings-based contingent consideration	1,900
Contingent consideration, maximum cash payout	3,600
Transaction Costs	600
Acquired tangible assets	6,400
Acquired intangible assets	4,600
Liabilities assumed	(4,900)
Goodwill	$ 8,000
Tax deductible amount of Goodwill		$ 6,200