Other Long-Term Assets - Deposits (Details) - 1 months ended Mar. 31, 2018 ¥ in Millions, $ in Millions	USD ($)	CNY (¥)
Other Long-Term Assets - Deposits (Details) [Line Items]
Deposits are refundable amount | $	$ 2.8
RMB [Member]
Other Long-Term Assets - Deposits (Details) [Line Items]
Deposits are refundable amount | ¥		¥ 20