Accumulated Other Comprehensive Loss - Change in Accumulated Other Comprehensive Income (Loss) (AOCI) by Component, Net of Tax (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Loss [Line Items]
AOCI, balance as of December 31, 2012	$ (53,765)
Other comprehensive (loss) income before reclassifications	10,057
Amounts reclassified from AOCI	3,820
Total other comprehensive income (loss), net of tax	13,877	2,641	(13,239)
AOCI, balance as of December 31, 2013	(39,888)	(53,765)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Loss [Line Items]
AOCI, balance as of December 31, 2012	(5,760)
Other comprehensive (loss) income before reclassifications	(901)
Amounts reclassified from AOCI
Total other comprehensive income (loss), net of tax	(901)
AOCI, balance as of December 31, 2013	(6,661)
Losses on interest rate swap cash flow hedges, before tax [Member]
Accumulated Other Comprehensive Loss [Line Items]
AOCI, balance as of December 31, 2012	(713)
Other comprehensive (loss) income before reclassifications	1,443
Amounts reclassified from AOCI	141
Total other comprehensive income (loss), net of tax	1,584
AOCI, balance as of December 31, 2013	871
Amortization of defined benefit pension plan items [Member]
Accumulated Other Comprehensive Loss [Line Items]
AOCI, balance as of December 31, 2012	(47,292)
Other comprehensive (loss) income before reclassifications	9,515
Amounts reclassified from AOCI	3,679
Total other comprehensive income (loss), net of tax	13,194
AOCI, balance as of December 31, 2013	$ (34,098)