Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive loss (income), net of tax, beginning balance	$ (540,430)	$ (392,711)	$ (397,282)
OCI before reclassifications	(37,478)	(9,757)
Amounts reclassified from AOCI	4,593	5,186
Net current period other comprehensive income (loss)	(32,885)	(4,571)
Accumulated other comprehensive loss (income), net of tax, ending balance	(573,315)		(397,282)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive loss (income), net of tax, beginning balance	(173,342)	(104,278)	(113,674)
OCI before reclassifications	(50,515)	(9,396)
Amounts reclassified from AOCI	0	0
Net current period other comprehensive income (loss)	(50,515)	(9,396)
Accumulated other comprehensive loss (income), net of tax, ending balance	(223,857)		(113,674)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive loss (income), net of tax, beginning balance	12,371	(4,012)	(3,552)
OCI before reclassifications	13,037	(361)
Amounts reclassified from AOCI	(954)	821
Net current period other comprehensive income (loss)	12,083	460
Accumulated other comprehensive loss (income), net of tax, ending balance	24,454		(3,552)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive loss (income), net of tax, beginning balance	(379,459)	(284,421)	(280,056)
OCI before reclassifications	0	0
Amounts reclassified from AOCI	5,547	4,365
Net current period other comprehensive income (loss)	5,547	4,365
Accumulated other comprehensive loss (income), net of tax, ending balance	$ (373,912)		$ (280,056)

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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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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax of reclassification adjustments of other comprehensive income (loss).

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