Accounting Policies Recently Adopted and Pending Accounting Pronouncements - Additional Information (Details) $ in Thousands	Mar. 31, 2019 USD ($)
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Operating lease right-of-use assets	$ 33,861
Operating lease liabilities	34,921
Finance lease right-of-use assets, net of accumulated depreciation	11,200
Finance lease liabilities	$ 11,200
Percentage of right of use asset of total assets	0.30%