Schedule of Other Current Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Prepaid expenses	$ 27,957	$ 35,390
Short-term forward currency exchange contract assets	10,478	10,513
Promissory notes receivable, net		46,946
Restricted investments	7,348	2,354
Convertible promissory note conversion option		2,386
Other receivables	14,150	9,733
Other	445	1,202
Total other current assets	$ 60,378	$ 108,524