Goodwill and Intangibles Qtlry (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill Impairment	$ 0	$ 0	$ 4,100,000	$ 0	$ 0
Goodwill, Acquired During Period			81,150,000		$ 0
Quarton
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, Acquired During Period			81,200,000
Finite-lived Intangible Assets Acquired			$ 22,200,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			2 years 9 months 18 days
Amortization of Intangible Assets	$ 2,200,000		$ 6,700,000
Minimum | Quarton
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			2 years
Maximum | Quarton
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			4 years
Asset Company Reporting Unit
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill Impairment			$ 4,100,000
Goodwill, Acquired During Period			$ 0