Legal Matters - Additional Information (Detail)			12 Months Ended
	Jan. 14, 2016 Lawsuit	May 01, 2015 Lawsuit	Dec. 31, 2016 USD ($) Lawsuit
Commitments And Contingencies [Line Items]
Number of lawsuits filed | Lawsuit			2
Pre-tax reserve recorded within warehousing, marketing and administrative expenses | $			$ 4,000,000
Inadvertent Violation under TCPA for Unsolicited Fax Advertisement [Member]
Commitments And Contingencies [Line Items]
Damages sought by plaintiff per violation | $			500
Willful Violation under TCPA for Unsolicited Fax Advertisement [Member]
Commitments And Contingencies [Line Items]
Damages sought by plaintiff per violation | $			$ 1,500
United States District Court California [Member]
Commitments And Contingencies [Line Items]
Number of lawsuits filed | Lawsuit		1
United States District Court Illinois [Member]
Commitments And Contingencies [Line Items]
Number of lawsuits filed | Lawsuit	1