Accumulated Other Comprehensive Income ("AOCI") - Summary of Total Changes in AOCI by Component, Net of Tax (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at January 1, 2014	$ (17,702)
Other comprehensive income before reclassifications:
Gain on foreign currency translation adjustment	1,830
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial loss	2
Net current period other comprehensive income	1,832	497
Balance at March 31, 2014	(15,870)
Defined Benefit Pension Plan Activity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at January 1, 2014	(1,905)
Other comprehensive income before reclassifications:
Gain on foreign currency translation adjustment	0
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial loss	2
Net current period other comprehensive income	2
Balance at March 31, 2014	(1,903)
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at January 1, 2014	(15,797)
Other comprehensive income before reclassifications:
Gain on foreign currency translation adjustment	1,830
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial loss	0
Net current period other comprehensive income	1,830
Balance at March 31, 2014	$ (13,967)

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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