Subsequent Events - Narrative (Details) - USD ($)	Oct. 02, 2017	Nov. 03, 2017	Sep. 30, 2017	Jun. 30, 2017
Subsequent Event [Line Items]
Preferred Stock, Par or Stated Value Per Share			$ 1	$ 1
Common stock, shares authorized (in shares)			25,000,000	25,000,000
Common Stock, Par or Stated Value Per Share			$ 1	$ 1
Subsequent Event
Subsequent Event [Line Items]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 14,700
Common stock, shares authorized (in shares)		250,000,000
Common Stock, Par or Stated Value Per Share		$ 1.00
Boyd Coffee Co. | Subsequent Event
Subsequent Event [Line Items]
Payments to acquire business	39,500,000
Other Payments to Acquire Businesses	$ 630,000
Preferred Stock, Par or Stated Value Per Share	$ 1.00
Boyd Coffee Co. | Cash [Member] | Subsequent Event
Subsequent Event [Line Items]
Business Combination, Contingent Consideration, Liability, Current	$ 4,200,000
Boyd Coffee Co. | Cumulative Preferred Stock [Member] | Subsequent Event
Subsequent Event [Line Items]
Preferred Stock, Par or Stated Value Per Share	$ 1,000
Business Combination, Contingent Consideration, Liability, Current	$ 0
Preferred Stock, Dividend Rate, Percentage	3.50%