Components Of Loss (Gain) On Disposal or Impairment Of Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Impairment Of Assets [Line Items]
Impairment of long-lived assets	$ 36,177		$ 5,896	$ 2,138
Goodwill and intangible assets impairment			9,497
China CTA gain realization			8,853
Gain on disposal of assets			(230)	(41)	$ (43)
Total			44,111	15,079	$ (43)
UNITED STATES
Impairment Of Assets [Line Items]
Impairment of long-lived assets			42,664	4,956
CHINA
Impairment Of Assets [Line Items]
Impairment of long-lived assets		$ 10,164
China assets impairment	1,033		1,033	$ 10,164
China CTA gain realization	$ (8,853)		$ (8,853)