Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Other Commitments (Details)

v3.19.1
Commitments and Contingencies - Other Commitments (Details) - Line of Credit
$ in Millions
Mar. 31, 2019
USD ($)
Long-term Commitment [Line Items]  
Letters of credit outstanding $ 4.7
Letters of Credit  
Long-term Commitment [Line Items]  
Letters of credit outstanding $ 4.2