Organization and Significant Accounting Policies - Allowance for Doubtful Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at January 1	$ 460	$ 430	$ 82
Provision charged to expense	(707)	(26)	(348)
Write-offs / Recoveries	(446)	(216)	(162)
Balance at December 31	1,189	460	430
Including Foreign Currency Translation
Allowance for Doubtful Accounts Receivable [Roll Forward]
Provision charged to expense	$ 1,175	$ 246	$ 510