Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Schedule of Estimated Fair Values of Financial Instruments

The estimated fair values of financial instruments are as follows (in thousands):

	December 31, 2015				December 31, 2014
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Notes payable	$	175,181	$	175,181	$	39,235	$	39,235
Subordinated amortizing notes	14,066		12,122		20,717		20,717
5 3/4% Senior Notes due 2019	148,295		147,750		147,766		149,250
8 1/2% Senior Notes due 2020	422,896		449,438		422,889		462,410
7% Senior Notes due 2022	345,338		350,875		294,791		300,750