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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Carrier and Its Affiliates \| Cost of Goods, Total \| Supplier Concentration Risk
Related Party Transaction [Line Items]
Percentage of purchases from key suppliers	62.00%	62.00%
Amount payable to Carrier and its affiliates, net of receivables	$ 99,000		$ 75,000
Carrier and Its Affiliates \| Sales Revenue, Product Line [Member] \| Customer Concentration Risk [Member]
Related Party Transaction [Line Items]
Revenues from sales to Carrier and its affiliates	16,000	$ 11,000
Moss & Associates LLC \| Customary Payments for Remodeling of Corporate Headquarters
Related Party Transaction [Line Items]
Payment for related party transaction	53	$ 418
Amount payable to related party	71
Greenberg Traurig, P.A. \| Customary Fees for Legal Services
Related Party Transaction [Line Items]
Payment for related party transaction	4
Amount payable to related party	$ 0