Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Components Of Long-Term Debt

Long-term debt, including the effects of issuance discounts and net deferred fair value hedge losses, consisted of the following components at December 31, 2013 and 2012:

	December 31,
	2013			2012
	(in thousands)
Outstanding debt principal balances:
Pioneer credit facility	$	—		$	474,000
Pioneer Southwest credit facility	—			126,000
5.875% senior notes due 2016	455,385			455,385
6.65% senior notes due 2017	485,100			485,100
6.875 % senior notes due 2018	449,500			449,500
7.500 % senior notes due 2020	450,000			450,000
3.95% senior notes due 2022	600,000			600,000
7.20% senior notes due 2028	250,000			250,000
2.875% convertible senior notes due 2038	—			479,907
	2,689,985			3,769,892
Issuance discounts	(35,885		)	(47,309		)
Net deferred fair value hedge losses	(1,041		)	(1,390		)
Total long-term debt	$	2,653,059		$	3,721,193

Principal Maturities Of Long-Term Debt

Principal maturities of long-term debt at December 31, 2013, are as follows (in thousands):

2014	$	—
2015	$	—
2016	$	455,385
2017	$	485,100
2018	$	449,500
Thereafter	$	1,300,000

Interest Expense

The following amounts have been incurred and charged to interest expense for the years ended December 31, 2013, 2012 and 2011:

	Year Ended December 31,
	2013			2012			2011
	(in thousands)
Cash payments for interest	$	182,126		$	168,665		$	165,251
Amortization of issuance discounts	11,423			27,351			25,210
Amortization of net deferred hedge losses (a)	349			2,018			573
Accretion of discount on postretirement benefit obligations	193			257			315
Amortization of capitalized loan fees	5,260			5,937			5,385
Net changes in accruals	(5,709		)	10,842			(1,768		)
Interest incurred	193,642			215,070			194,966
Less capitalized interest	(9,892		)	(10,848		)	(13,362		)
Total interest expense	$	183,750		$	204,222		$	181,604

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(a) Includes interest rate derivative hedges of $1.7 million and $282 thousand for the periods ended December 31, 2012 and 2011, respectively, that were reclassified from AOCI - Hedging into earnings upon expiration (see Note E).