Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands |
3 Months Ended | |
---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
|
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
Decrease to cash provided by financing activities | $ 94,228 | $ (78,390) |
Increase to cash provided by operating activities | $ 94,859 | 71,297 |
Accounting Standards Update 2016-09 [Member] | ||
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
Decrease to cash provided by financing activities | (300) | |
Increase to cash provided by operating activities | $ 300 |