Leases - Balance Sheet Classification of Lease Assets and Liabilities (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating lease assets	$ 115,390
Finance lease assets	268
Total lease assets	115,658
Current operating lease liabilities	13,277
Noncurrent operating lease liabilities	113,748
Noncurrent finance lease liabilities	299
Total lease liabilities	$ 127,324
Weighted-average remaining lease term (years) - operating leases	8 years 2 months 12 days
Weighted-average discount rate - operating leases	5.00%