Stockholders' Equity - Gains (Losses) Reclassified Out of AOCI (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Less - related income taxes	$ 51,693	$ 31,100	$ 44,940
Net of tax	7,068
Total reclassifications, net of tax	7,107
Interest Rate Hedge [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of interest rate hedge	2,502
Net of tax	2,502
Employee Benefit Plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization relating to employee benefit plans	6,534
Less - related income taxes	1,929
Net of tax	$ 4,605