Advances to and Investments in Foreign Joint Ventures' Operations - Schedule of Activity in Investment in Foreign Joint Ventures (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	$ 13,033
Equity in earnings (loss)	2,194	3,024
Balance, end of year	12,054	13,033
Investment In Joint Ventures
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	2,101		2,281
Withdrawal from joint venture	(54)
Balance, end of year	2,047		2,281
Undistributed Earnings
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	9,496	7,816
Equity in earnings (loss)	2,194	3,024
Dividend distributions	(2,522)	(1,344)
Withdrawal from joint venture	(653)
Balance, end of year	8,515	9,496
Foreign Currency Translation
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	1,436
Change during the year	(15)	125
Withdrawal from joint venture	71
Balance, end of year	1,492	1,436
BOMAY
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	10,609
Equity in earnings (loss)	2,054	2,066
Balance, end of year	11,548	10,609
BOMAY \| Investment In Joint Ventures
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year			2,033
Balance, end of year	2,033	2,033	2,033
BOMAY \| Undistributed Earnings
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	7,145	6,400
Equity in earnings (loss)	2,054	2,066
Dividend distributions	(1,042)	(1,321)
Balance, end of year	8,157	7,145
BOMAY \| Foreign Currency Translation
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	1,431
Change during the year	(73)	333
Balance, end of year	1,358	1,431
MIEFE
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	1,138
Equity in earnings (loss)	138	115
Balance, end of year	506	1,138
MIEFE \| Investment In Joint Ventures
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year			14
Balance, end of year	14	14	14
MIEFE \| Undistributed Earnings
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	870	755
Equity in earnings (loss)	138	115
Dividend distributions	(650)
Balance, end of year	358	870
MIEFE \| Foreign Currency Translation
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	254
Change during the year	(120)	(40)
Balance, end of year	134	254
AAG
Schedule Of Equity Method Investments [Line Items]
Balance, end of year		1,286
AAG \| Investment In Joint Ventures
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	54		234
Withdrawal from joint venture	(54)
Balance, end of year			234
AAG \| Undistributed Earnings
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	1,481	661
Equity in earnings (loss)	2	843
Dividend distributions	(830)	(23)
Withdrawal from joint venture	(653)
Balance, end of year		1,481
AAG \| Foreign Currency Translation
Schedule Of Equity Method Investments [Line Items]
Balance, beginning of year	(249)
Change during the year	178	(168)
Withdrawal from joint venture	71
Balance, end of year		$ (249)

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This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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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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The net of the gross additions and gross reductions to the investment in and advance to the affiliate.

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