国产福利资源在线播放 Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Adoption of ASU 2017-07 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]	听	听	听	听
Operating income	$ 65,505	$ 30,379	$ 119,986	$ 59,269
Other income	听	6	听	13
As reported in prior year	听	听	听	听
New Accounting Pronouncements or Change in Accounting Principle [Line Items]	听	听	听	听
Operating income	听	24,732	听	46,836
Other income	听	10	听	19
Retrospective Adjustment \| Accounting Standards Update 2017-07	听	听	听	听
New Accounting Pronouncements or Change in Accounting Principle [Line Items]	听	听	听	听
Operating income	听	5,647	听	12,433
Other income	听	$ (4)	听	$ (6)