The Company and Summary of Significant Accounting Policies (Details 3) (Recurring basis, USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value
Assets (Liabilities) at fair value
Nonqualified deferred compensation asset	$ 4,410	$ 3,653
Nonqualified deferred compensation liability	(4,410)	(3,653)
Designated derivatives liability	(550)
Non-designated derivatives asset		839
Non-designated derivatives liability		(336)
Contingent consideration for acquisition of business	(48,000)	(71,500)
Level 1
Assets (Liabilities) at fair value
Nonqualified deferred compensation asset	4,410	3,653
Nonqualified deferred compensation liability	(4,410)	(3,653)
Level 2
Assets (Liabilities) at fair value
Designated derivatives liability	(550)
Non-designated derivatives asset		839
Non-designated derivatives liability		(336)
Level 3
Assets (Liabilities) at fair value
Contingent consideration for acquisition of business	$ (48,000)	$ (71,500)