Goodwill and Intangible Assets, Net - Impairment Testing (Details) $ / shares in Units, $ in Thousands		6 Months Ended	12 Months Ended
	Oct. 31, 2019 unit $ / shares	Oct. 31, 2019 $ / shares	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) reporting_unit	Dec. 31, 2019 USD ($) unit	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Finite-Lived Intangible Assets [Line Items]
Number of reporting units for goodwill testing	3			4	4
Share price (in dollars per share) | $ / shares	$ 6.59	$ 6.59
Goodwill, impairment testing, percentage share price decrease		43.50%
Goodwill			$ 572,064	$ 572,064	$ 572,064	$ 768,124	$ 628,186
Number of reporting units, fair value in excess of carrying amount | unit	1
Goodwill impairment			199,800			$ 0	$ 0
Valuation, Income Approach
Finite-Lived Intangible Assets [Line Items]
Goodwill			431,700	$ 431,700	$ 431,700
Goodwill impairment			$ 199,800