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Subsequent Events (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 05, 2019	Mar. 31, 2019	Mar. 31, 2018
Subsequent Event
Repayments of long-term debt		$ 629,000	$ 146,636
Senior Notes
Subsequent Event
Interest rate (as a percent)		6.00%
Senior Notes | Partnership’s 6% senior notes due April 2021
Subsequent Event
Interest rate (as a percent)		6.00%
Subsequent Event | Senior Notes | Partnership’s 6% senior notes due April 2021
Subsequent Event
Interest rate (as a percent)	6.00%
Redemption rate (as a percent)	100.00%
Repayments of long-term debt	$ 350,000
Interest paid	200
Loss on extinguishment of debt	$ (3,700)

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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