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
	Mar. 31, 2018	Mar. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]	听	听
Operating income	$ 54,481	$ 28,890
Other income	听	7
Scenario, Previously Reported	听	听
New Accounting Pronouncements or Change in Accounting Principle [Line Items]	听	听
Operating income	听	22,104
Other income	听	9
Accounting Standards Update 2017-07 \| Restatement Adjustment	听	听
New Accounting Pronouncements or Change in Accounting Principle [Line Items]	听	听
Operating income	听	6,786
Other income	听	$ (2)