Condensed Consolidating Statement of Cash Flows (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 369,504	$ 283,256	$ 351,076
Net cash used in investing activities	(125,512)	(79,920)	(172,039)
Net cash used in financing activities	(228,970)	(196,271)	(148,714)
Net increase (decrease) in cash and cash equivalents	15,022	7,065	30,323
CASH AND CASH EQUIVALENTS, beginning of year	62,897	55,832	25,509
CASH AND CASH EQUIVALENTS, end of year	77,919	62,897	55,832
Parent
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	211,247	260,602
Net cash used in investing activities	(83,895)	(42,378)
Net cash used in financing activities	(95,705)	(218,224)
Net increase (decrease) in cash and cash equivalents	31,647
CASH AND CASH EQUIVALENTS, end of year	31,647
Combined Subsidiary Guarantors
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	158,257	22,654
Net cash used in investing activities	(56,617)	(37,542)
Net cash used in financing activities	(118,265)	21,953
Net increase (decrease) in cash and cash equivalents	(16,625)	7,065
CASH AND CASH EQUIVALENTS, beginning of year	62,897	55,832
CASH AND CASH EQUIVALENTS, end of year	46,272	62,897
Consolidating Adjustments and Other
Condensed Financial Statements, Captions [Line Items]
Net cash used in investing activities	15,000
Net cash used in financing activities	$ (15,000)