Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Preliminary Values Assigned to Assets Acquired and Liabilities Assumed (Detail)

v2.4.1.9

Preliminary Values Assigned to Assets Acquired and Liabilities Assumed (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Apr. 17, 2014
Business Acquisition [Line Items]
Goodwill	$ 42,991us-gaap_Goodwill	$ 42,991us-gaap_Goodwill
Value Lighting
Business Acquisition [Line Items]
Cash			35
Accounts receivable			8,720
Inventory			7,505
Goodwill			18,635
Other intangibles			116
Other assets			2,901
Assets acquired			57,747
Accounts payable			8,683
Accrued liabilities			1,383
Other current liabilities			1,362
Other liabilities			1,185
Deferred income tax liability			5,825
Liabilities assumed			18,438
Purchase price			39,309
Value Lighting \| Customer Relationships
Business Acquisition [Line Items]
Intangible assets			12,270
Value Lighting \| Trade Names
Business Acquisition [Line Items]
Intangible assets			4,800
Value Lighting \| Backlog
Business Acquisition [Line Items]
Intangible assets			2,505
Value Lighting \| Non-compete agreement
Business Acquisition [Line Items]
Intangible assets			$ 260

- Definition

Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Accrued Liabilities

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- Definition

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets Other Assets

+ References

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- Definition

Amount of assets acquired at the acquisition date.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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- Definition

Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

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- Definition

The amount of inventory recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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