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Purchase of Additional Ownership Interest in Joint Ventures - Additional Information (Detail) - Carrier Enterprise II $ in Thousands			3 Months Ended
	Feb. 13, 2017 USD ($)	Nov. 29, 2016 USD ($)	Mar. 31, 2017	Dec. 31, 2011 Transactions	Jul. 31, 2011 Location	Apr. 30, 2011 Location State
Business Acquisition [Line Items]
Additional ownership interest acquired	10.00%	10.00%
Cash consideration | $	$ 42,688	$ 42,909
Controlling interest, ownership percentage	80.00%		80.00%
Number of completed transactions | Transactions				2
Controlling interest, ownership percentage	80.00%				60.00%
Northeast U.S.
Business Acquisition [Line Items]
Number of locations contributed to joint venture by related party						28
Number of states included under joint venture | State						8
Number of locations contributed to joint venture by parent						14
MEXICO
Business Acquisition [Line Items]
Number of locations contributed to joint venture by related party					7

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

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Additional Ownership Interest Percentage Acquired

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Number of geographical locations under joint venture.

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Number of locations contributed under joint venture.

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Number of transactions under joint venture.

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Ownership Percentage

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