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Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Narrative (Details)

v3.19.3.a.u2
Employee Benefit Plans - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý
Requisite service years 1 year Ìý Ìý
Employer contribution amount $ 0.3 $ 0.1 $ 0.1
Requisite service period 1 year Ìý Ìý
Reclassification adjustment from AOCI, net of tax $ 0.1 0.1 0.1
Reclassification adjustment from AOCI, tax 0.1 $ 0.1 $ 0.1
Reclassification adjustment from AOCI over the next fiscal year $ 0.1 Ìý Ìý
Expected return on plan assets 7.00% 7.00% 7.00%
Inflation Rate Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý
Expected return on plan assets 2.50% Ìý Ìý
Fixed Income Securities Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý
Expected return on plan assets 2.50% Ìý Ìý
Allocation of expected return on plan assets (in percentage) 66.66667% Ìý Ìý
Fixed Income Securities | Minimum Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý
Target allocation (in percentage) 30.00% Ìý Ìý
Fixed Income Securities | Maximum Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý
Target allocation (in percentage) 80.00% Ìý Ìý
Equity securities Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý
Expected return on plan assets 8.50% Ìý Ìý
Allocation of expected return on plan assets (in percentage) 33.33333% Ìý Ìý
Equity securities | Minimum Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý
Target allocation (in percentage) 20.00% Ìý Ìý
Equity securities | Maximum Ìý Ìý Ìý
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Ìý Ìý Ìý
Target allocation (in percentage) 60.00% Ìý Ìý