Investments in Foreign Joint Ventures - Schedule of Activity in Investment in Foreign Joint Ventures (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Investments in foreign joint ventures:
Balance at December 31, 2014	$ 12,054
Equity in earnings (loss) in 2015	116	474
Foreign currency translation adjustment	(65)
Investments, end of period	12,105
Components of investments in foreign joint ventures:
Investment in joint ventures	2,047us-gaap_EquityMethodInvestments
Undistributed earnings	8,631
Foreign currency translation	1,427
Investments, end of period	12,105
BOMAY
Investments in foreign joint ventures:
Balance at December 31, 2014	11,548
Equity in earnings (loss) in 2015	192
Foreign currency translation adjustment	(37)
Investments, end of period	11,703
Components of investments in foreign joint ventures:
Investment in joint ventures	2,033
Undistributed earnings	8,349
Foreign currency translation	1,321
Investments, end of period	11,703
MIEFE
Investments in foreign joint ventures:
Balance at December 31, 2014	506
Equity in earnings (loss) in 2015	(76)
Foreign currency translation adjustment	(28)
Investments, end of period	402
Components of investments in foreign joint ventures:
Investment in joint ventures	14
Undistributed earnings	282
Foreign currency translation	106
Investments, end of period	$ 402

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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