Estimated Fair Values of Assets Acquired and Liabilities Assumed for Distributors 2014 Acquisition (Details) - Distributors 2014 [Member] $ in Thousands	Jan. 31, 2014 USD ($)
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]
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	(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