Acquisitions (Pro Forma Information) (Details) - USD ($) $ in Thousands			3 Months Ended	7 Months Ended	9 Months Ended	12 Months Ended
		Jun. 16, 2017	Sep. 30, 2017	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2019
Business Acquisition [Line Items]
Acquisition-related cost			$ 3,000		$ 3,000
IT'SUGAR, LLC [Member]
Business Acquisition [Line Items]
Trade sales, Pro Forma						$ 178,643
Income before income taxes, Pro Forma						93,273
Net income, Pro Forma	[1]					102,703
Net income attributable to shareholders, Pro Forma	[1]					$ 84,356
Trade sales, Actual				$ 46,765
Net income attributable to shareholders, Actual				$ 2,598
Acquisition-related cost		$ 2,963

[1] The pro forma income before income taxes, net income, and net income attributable to shareholders for the year ended December 31, 2017 were adjusted to exclude $3.0 million of acquisition-related costs.