Employee Retirement Plans - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Schedule of Benefit Plans Disclosures [Line Items]
Plan assets	$ 3.2
Projected benefit obligation	3.1
Multiemployer plan, expected contributions in following year	$ 1.8
Maximum
Schedule of Benefit Plans Disclosures [Line Items]
Company's contributions to multiemployer plan as a percentage of total contributions (less than)	5.00%
Other assets
Schedule of Benefit Plans Disclosures [Line Items]
Deferred compensation plan assets	$ 3.9
Funded status of plan	0.1
Other liabilities
Schedule of Benefit Plans Disclosures [Line Items]
Deferred compensation liability	$ 2.8