Related Party Transactions - Transactions with Anheuser-Busch, LLC (A-B), Ambev and Anheuser-Busch Worldwide Investments, LLC (ABWI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Percentage of stock owned by A-B	31.20%		31.20%		31.30%
Affiliated entity | Anheuser-Busch, LLC (A-B) and Ambev | Gross sales
Related Party Transaction [Line Items]
Sales revenue or fee earned from related party	$ 38,740	$ 41,737	$ 129,779	$ 129,588
Affiliated entity | Anheuser-Busch Worldwide Investments, LLC (ABWI) | International distribution fees
Related Party Transaction [Line Items]
Sales revenue or fee earned from related party	812	850	2,436	2,550
Affiliated entity | Anheuser-Busch Worldwide Investments, LLC (ABWI) | International distribution fees recorded in Deferred revenue, net
Related Party Transaction [Line Items]
International distribution fee, recorded as deferred revenue in Other accrued expenses	19,188	650	17,564	1,950
Affiliated entity | Anheuser-Busch Companies, LLC (ABC) | Contract Brewing fee earned
Related Party Transaction [Line Items]
Sales revenue or fee earned from related party	139	821	781	1,679
Affiliated entity | Anheuser-Busch, LLC (A-B) | Margin fee paid, classified as a reduction of Sales
Related Party Transaction [Line Items]
Fee paid to related party	574	601	1,839	1,806
Affiliated entity | Anheuser-Busch, LLC (A-B) | Inventory management and other fees paid, classified in Cost of sales
Related Party Transaction [Line Items]
Fee paid to related party	98	97	295	287
Affiliated entity | Anheuser-Busch, LLC (A-B) | Media and other reimbursement, classified as a reduction of Selling, general and administrative expenses
Related Party Transaction [Line Items]
Fee paid to related party	0	$ 192	0	$ 192
Affiliated entity | Anheuser-Busch, LLC (A-B) | Amounts due related to beer sales
Amounts due to or from Anheuser-Busch, LLC [Abstract]
Amount due from related parties	12,631		12,631		$ 17,946
Affiliated entity | Anheuser-Busch, LLC (A-B) | Refundable deposits
Amounts due to or from Anheuser-Busch, LLC [Abstract]
Amounts due to related party	(3,712)		(3,712)		(2,840)
Affiliated entity | Anheuser-Busch, LLC (A-B) | Services rendered
Amounts due to or from Anheuser-Busch, LLC [Abstract]
Amounts due to related party	(6,725)		(6,725)		(5,140)
Affiliated entity | Anheuser-Busch Worldwide Investments, LLC (ABWI) And Anheuser Busch, LLC (A-B)
Amounts due to or from Anheuser-Busch, LLC [Abstract]
Net amount due from related party	2,194		2,194		15,966
Affiliated entity | Anheuser-Busch Worldwide Investments, LLC (ABWI) And Anheuser Busch, LLC (A-B) | Fees due related to international distribution fee and media reimbursement
Amounts due to or from Anheuser-Busch, LLC [Abstract]
Amount due from related parties	$ 0		$ 0		$ 6,000