Accumulated Other Comprehensive Income (Loss) - Change in Accumulated Other Comprehensive Income (Loss) (AOCI) by Component, Net of Tax (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, balance as of December 31, 2013			$ (39,888)
Other comprehensive (loss) income before reclassifications			(1,951)
Amounts reclassified from AOCI			2,001
Net other comprehensive (loss) income	(343)	(269)	50	4,381
AOCI, balance as of September 30, 2014	(39,838)		(39,838)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, balance as of December 31, 2013			(6,661)
Other comprehensive (loss) income before reclassifications			(1,378)
Net other comprehensive (loss) income			(1,378)
AOCI, balance as of September 30, 2014	(8,039)		(8,039)
Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, balance as of December 31, 2013			871
Other comprehensive (loss) income before reclassifications			(573)
Amounts reclassified from AOCI			234
Net other comprehensive (loss) income			(339)
AOCI, balance as of September 30, 2014	532		532
Defined Benefit Pension Plans [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, balance as of December 31, 2013			(34,098)
Amounts reclassified from AOCI			1,767
Net other comprehensive (loss) income			1,767
AOCI, balance as of September 30, 2014	$ (32,331)		$ (32,331)