Recent Accounting Pronouncements (Schedule of the Impact for the Adoption of ASU 842) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
ASSETS
Other assets	$ 92,896	$ 93,796	$ 50,523
LIABILITIES
Accrued expenses and other current liabilities	175,525	185,894	174,325
Other Long-term Liabilities	186,434	183,343	$ 151,639
Accounting Standards Update 2016-02 [Member]
ASSETS
Other assets		43,300
Accounting Standards Update 2016-02 [Member] | Balance Without Adoption Of ASC 842 [Member]
ASSETS
Other assets	50,001
LIABILITIES
Accrued expenses and other current liabilities	163,718
Other Long-term Liabilities	155,346
Accounting Standards Update 2016-02 [Member] | Reclassification [Member]
ASSETS
Other assets	42,895	43,273
LIABILITIES
Accrued expenses and other current liabilities	11,807	11,569
Other Long-term Liabilities	$ 31,088	$ 31,704