Amount of the cumulative effect on retained earnings net of related income tax effect.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Significant Accounting Policies Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Mar. 31, 2020	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect on Retained Earnings, Net of Tax	$ (29,300)
Cumulative effect of new accounting principle in period of adoption			$ (29,252)		$ (14,672)
Debt Securities, Threshold Period Past Due		90 days
Operating Lease, Right-of-Use Asset		$ 302,000	297,700	$ 170,500
Operating Lease, Liability		$ 331,500	323,700	174,400
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption			$ (29,252)	$ (14,700)	$ (14,672)