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Significant Accounting Policies and Recently Issued Accounting Pronouncement - Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 01, 2019	Dec. 31, 2019	Dec. 31, 2018
Recently Issued Accounting Pronouncements
Right-of-use assets obtained in exchange for lease obligations		$ 83,248
Deferred rent		175,273	$ 156,212
Lease liability		$ 91,320
Accounting Standards Update 2016-02: Leases \| Restatement
Recently Issued Accounting Pronouncements
Right-of-use assets obtained in exchange for lease obligations	$ 58,600
Deferred rent	(20,700)
Lease liability	$ 79,300