Income Taxes Income Taxes - Provision for (Benefit from) Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Federal
Current	$ 26	$ 0	$ 65
Deferred	24,262	22,382	21,026
Total federal income tax expense	24,288	22,382	21,091
State
Current	1,235	438	224
Deferred	1,158	1,486	1,394
Total state tax expense	2,393	1,924	1,618
Foreign
Current	3,113	1,173	1,263
Deferred	(950)	126	(747)
Total foreign tax expense	2,163	1,299	516
Provision for income taxes	$ 28,844	$ 25,605	$ 23,225