Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Cash Flows (Parenthetical)

v3.10.0.1
Consolidated Statements of Cash Flows (Parenthetical)
Jun. 30, 2018
May 19, 2017
6.125% senior unsecured notes due 2024    
Debt instrument, interest rate, stated (as a percent) 6.125% 6.125%
6.375% senior unsecured notes due 2026    
Debt instrument, interest rate, stated (as a percent) 6.375%