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Interest Expense (Tables)

12 Months Ended

Dec. 31, 2019

Interest Expense

Schedule of components of interest

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​	​	​	​	​	​	​	​	​	​
​	​	Year Ended		​	Year Ended		​	Year Ended
​	​	December 31, 2019		​	December 31, 2018		​	December 31, 2017
​	​	(in thousands)
Interest on borrowings		$	456,678		$	362,843		$	303,966
Less capitalized interest	​		(59,358)	​		(52,817)	​		(46,049)
Interest	​		397,320	​		310,026	​		257,917
Amortization of discounts and deferred debt issue costs	​		36,691	​		32,706	​		29,454
Interest expense	​	$	434,011	​	$	342,732	​	$	287,371

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Tabular disclosure of components of interest expense.

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