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EXHIBIT 4.2
EXHIBIT 10.12
EXHIBIT 10.13
EXHIBIT 10.15
EXHIBIT 21.1
EXHIBIT 23.1
EXHIBIT 31.1
EXHIBIT 31.2
EXHIBIT 32.1
EXHIBIT 32.2
Summary of Significant Accounting Policies, Advertising Expenses (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Advertising Expense [Abstract]
Advertising costs incurred
$ 16.3
$ 19.1
$ 15.6