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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Percentage of stock owned by A-B	31.20%		31.20%
Affiliated entity | Anheuser-Busch, LLC (A-B) and Ambev | Gross sales
Related Party Transaction [Line Items]
Sales revenue or fee earned from related party	$ 51,430	$ 50,283	$ 91,039	$ 87,851
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	1,624	1,700
Affiliated entity | Anheuser-Busch Worldwide Investments, LLC (ABWI) | International distribution fees recorded in Deferred revenue
Related Party Transaction [Line Items]
International distribution fee, recorded as deferred revenue in Other accrued expenses	0	650	0	1,300
Affiliated entity | Anheuser-Busch Companies, LLC (ABC) | Contract Brewing fee earned
Related Party Transaction [Line Items]
Sales revenue or fee earned from related party	104	395	642	858
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	724	687	1,265	1,205
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	107	$ 100	197	$ 190
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	21,885		21,885		$ 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	(3,709)		(3,709)		(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	(9,532)		(9,532)		(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	8,644		8,644		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