Goodwill (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Information about goodwill is as follows:

	Goodwill for the Years Ended December 31,
	2016			2015			2014
Balance as of January 1:
Goodwill	$	156,817		$	156,817		$	156,817
Accumulated impairment loss	(139,532		)	(139,532		)	(139,532		)
	17,285			17,285			17,285
Impairment (Refer to Note 1)	(17,285		)	—			—
Goodwill	156,817			156,817			156,817
Accumulated impairment losses	(156,817		)	(139,532		)	(139,532		)
Balance as of December 31:	$	—		$	17,285		$	17,285