Estimated Fair Values of Assets Acquired and Liabilities Assumed for Distributors 2014 Acquisition (Details) - USD ($) $ in Thousands	Dec. 15, 2015	Jan. 31, 2014
Distributors 2014 [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		$ 27,808
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		1,709
Goodwill		16,199
Current liabilities		(1,260)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		44,456
Business Combinations, Preexisting Relationship, Liability Forgiveness		(5,971)
Consideration paid at closing		38,485
Scenario, Previously Reported [Member] | Distributors 2014 [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		35,909
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		2,000
Goodwill		7,552
Current liabilities		(1,005)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		44,456
Business Combinations, Preexisting Relationship, Liability Forgiveness		(5,971)
Consideration paid at closing		38,485
Scenario, Adjustment [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	$ (100)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	0
Current liabilities	0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	$ 0
Scenario, Adjustment [Member] | Distributors 2014 [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		(8,101)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		(291)
Goodwill		8,647
Current liabilities		(255)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		0
Business Combinations, Preexisting Relationship, Liability Forgiveness		0
Consideration paid at closing		$ 0